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Finding the Fourth Proportional to 9,877.71, 14,753.49 and 8,939.22

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Solution

The fourth proportional to 9,877.71, 14,753.49 and 8,939.22 is: 13,351.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,877.71 : 14,753.49 = 8,939.22 : x
  2. Step 2: Convert to fraction form
    9,877.71/14,753.49 = 8,939.22/x
  3. Step 3: Cross multiply
    9,877.71x = 14,753.49 × 8,939.22
  4. Step 4: Simplify right side
    9,877.71x = 131,884,692.88
  5. Step 5: Solve for x
    x = 131,884,692.88/9,877.71
  6. Step 6: Final answer
    x = 13,351.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.