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Finding the Fourth Proportional to 9,937.97, 14,910.80 and 4,387.40

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Solution

The fourth proportional to 9,937.97, 14,910.80 and 4,387.40 is: 6,582.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,937.97 : 14,910.80 = 4,387.40 : x
  2. Step 2: Convert to fraction form
    9,937.97/14,910.80 = 4,387.40/x
  3. Step 3: Cross multiply
    9,937.97x = 14,910.80 × 4,387.40
  4. Step 4: Simplify right side
    9,937.97x = 65,419,643.92
  5. Step 5: Solve for x
    x = 65,419,643.92/9,937.97
  6. Step 6: Final answer
    x = 6,582.80

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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.