Home / 13,316.36-18,373.29-8,140.92

Finding the Fourth Proportional to 13,316.36, 18,373.29 and 8,140.92

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Solution

The fourth proportional to 13,316.36, 18,373.29 and 8,140.92 is: 11,232.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316.36 : 18,373.29 = 8,140.92 : x
  2. Step 2: Convert to fraction form
    13,316.36/18,373.29 = 8,140.92/x
  3. Step 3: Cross multiply
    13,316.36x = 18,373.29 × 8,140.92
  4. Step 4: Simplify right side
    13,316.36x = 149,575,484.03
  5. Step 5: Solve for x
    x = 149,575,484.03/13,316.36
  6. Step 6: Final answer
    x = 11,232.46

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Half scale
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Double scale
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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.