Home / 18,885.38-26,061.84-10,387.62

Finding the Fourth Proportional to 18,885.38, 26,061.84 and 10,387.62

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Solution

The fourth proportional to 18,885.38, 26,061.84 and 10,387.62 is: 14,334.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,885.38 : 26,061.84 = 10,387.62 : x
  2. Step 2: Convert to fraction form
    18,885.38/26,061.84 = 10,387.62/x
  3. Step 3: Cross multiply
    18,885.38x = 26,061.84 × 10,387.62
  4. Step 4: Simplify right side
    18,885.38x = 270,720,490.42
  5. Step 5: Solve for x
    x = 270,720,490.42/18,885.38
  6. Step 6: Final answer
    x = 14,334.93

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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.