Home / 13,313.48-18,372.75-7,345.10

Finding the Fourth Proportional to 13,313.48, 18,372.75 and 7,345.10

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Solution

The fourth proportional to 13,313.48, 18,372.75 and 7,345.10 is: 10,136.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,313.48 : 18,372.75 = 7,345.10 : x
  2. Step 2: Convert to fraction form
    13,313.48/18,372.75 = 7,345.10/x
  3. Step 3: Cross multiply
    13,313.48x = 18,372.75 × 7,345.10
  4. Step 4: Simplify right side
    13,313.48x = 134,949,686.03
  5. Step 5: Solve for x
    x = 134,949,686.03/13,313.48
  6. Step 6: Final answer
    x = 10,136.32

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Find fourth proportional to 6,656.74, 9,186.38 and 3,672.55
Half scale
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Double scale
Find fourth proportional to 13,314.48, 18,374.13 and 7,346.10
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.