Home / 10,513.53-15,781.46-4,277.61

Finding the Fourth Proportional to 10,513.53, 15,781.46 and 4,277.61

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Solution

The fourth proportional to 10,513.53, 15,781.46 and 4,277.61 is: 6,420.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,513.53 : 15,781.46 = 4,277.61 : x
  2. Step 2: Convert to fraction form
    10,513.53/15,781.46 = 4,277.61/x
  3. Step 3: Cross multiply
    10,513.53x = 15,781.46 × 4,277.61
  4. Step 4: Simplify right side
    10,513.53x = 67,506,909.72
  5. Step 5: Solve for x
    x = 67,506,909.72/10,513.53
  6. Step 6: Final answer
    x = 6,420.96

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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.