Home / 11,074.61-16,593.42-7,781.81

Finding the Fourth Proportional to 11,074.61, 16,593.42 and 7,781.81

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Solution

The fourth proportional to 11,074.61, 16,593.42 and 7,781.81 is: 11,659.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,074.61 : 16,593.42 = 7,781.81 : x
  2. Step 2: Convert to fraction form
    11,074.61/16,593.42 = 7,781.81/x
  3. Step 3: Cross multiply
    11,074.61x = 16,593.42 × 7,781.81
  4. Step 4: Simplify right side
    11,074.61x = 129,126,883.17
  5. Step 5: Solve for x
    x = 129,126,883.17/11,074.61
  6. Step 6: Final answer
    x = 11,659.72

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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.