Home / 16,487.76-24,720.71-5,390.56

Finding the Fourth Proportional to 16,487.76, 24,720.71 and 5,390.56

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Solution

The fourth proportional to 16,487.76, 24,720.71 and 5,390.56 is: 8,082.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,487.76 : 24,720.71 = 5,390.56 : x
  2. Step 2: Convert to fraction form
    16,487.76/24,720.71 = 5,390.56/x
  3. Step 3: Cross multiply
    16,487.76x = 24,720.71 × 5,390.56
  4. Step 4: Simplify right side
    16,487.76x = 133,258,381.74
  5. Step 5: Solve for x
    x = 133,258,381.74/16,487.76
  6. Step 6: Final answer
    x = 8,082.26

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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.