Home / 18,329.28-25,294.41-9,945.78

Finding the Fourth Proportional to 18,329.28, 25,294.41 and 9,945.78

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Solution

The fourth proportional to 18,329.28, 25,294.41 and 9,945.78 is: 13,725.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,329.28 : 25,294.41 = 9,945.78 : x
  2. Step 2: Convert to fraction form
    18,329.28/25,294.41 = 9,945.78/x
  3. Step 3: Cross multiply
    18,329.28x = 25,294.41 × 9,945.78
  4. Step 4: Simplify right side
    18,329.28x = 251,572,675.46
  5. Step 5: Solve for x
    x = 251,572,675.46/18,329.28
  6. Step 6: Final answer
    x = 13,725.18

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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.