Home / 10,376.78-15,561.35-3,711.48

Finding the Fourth Proportional to 10,376.78, 15,561.35 and 3,711.48

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Solution

The fourth proportional to 10,376.78, 15,561.35 and 3,711.48 is: 5,565.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,376.78 : 15,561.35 = 3,711.48 : x
  2. Step 2: Convert to fraction form
    10,376.78/15,561.35 = 3,711.48/x
  3. Step 3: Cross multiply
    10,376.78x = 15,561.35 × 3,711.48
  4. Step 4: Simplify right side
    10,376.78x = 57,755,620.74
  5. Step 5: Solve for x
    x = 57,755,620.74/10,376.78
  6. Step 6: Final answer
    x = 5,565.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.