Home / 11,781.52-17,665.98-6,220.80

Finding the Fourth Proportional to 11,781.52, 17,665.98 and 6,220.80

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Solution

The fourth proportional to 11,781.52, 17,665.98 and 6,220.80 is: 9,327.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,781.52 : 17,665.98 = 6,220.80 : x
  2. Step 2: Convert to fraction form
    11,781.52/17,665.98 = 6,220.80/x
  3. Step 3: Cross multiply
    11,781.52x = 17,665.98 × 6,220.80
  4. Step 4: Simplify right side
    11,781.52x = 109,896,528.38
  5. Step 5: Solve for x
    x = 109,896,528.38/11,781.52
  6. Step 6: Final answer
    x = 9,327.87

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1.5x scale

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.