Home / 13,323.23-18,386.53-7,355.12

Finding the Fourth Proportional to 13,323.23, 18,386.53 and 7,355.12

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Solution

The fourth proportional to 13,323.23, 18,386.53 and 7,355.12 is: 10,150.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,323.23 : 18,386.53 = 7,355.12 : x
  2. Step 2: Convert to fraction form
    13,323.23/18,386.53 = 7,355.12/x
  3. Step 3: Cross multiply
    13,323.23x = 18,386.53 × 7,355.12
  4. Step 4: Simplify right side
    13,323.23x = 135,235,097.76
  5. Step 5: Solve for x
    x = 135,235,097.76/13,323.23
  6. Step 6: Final answer
    x = 10,150.32

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Half scale
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Double scale
Find fourth proportional to 13,324.23, 18,387.91 and 7,356.12
Similar ratio
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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.