Home / 18,381.59-25,365.11-10,424.55

Finding the Fourth Proportional to 18,381.59, 25,365.11 and 10,424.55

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Solution

The fourth proportional to 18,381.59, 25,365.11 and 10,424.55 is: 14,385.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,381.59 : 25,365.11 = 10,424.55 : x
  2. Step 2: Convert to fraction form
    18,381.59/25,365.11 = 10,424.55/x
  3. Step 3: Cross multiply
    18,381.59x = 25,365.11 × 10,424.55
  4. Step 4: Simplify right side
    18,381.59x = 264,419,805.33
  5. Step 5: Solve for x
    x = 264,419,805.33/18,381.59
  6. Step 6: Final answer
    x = 14,385.04

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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.