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Finding the Fourth Proportional to 7,929, 10,937.22 and 6,591.08

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Solution

The fourth proportional to 7,929, 10,937.22 and 6,591.08 is: 9,091.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929 : 10,937.22 = 6,591.08 : x
  2. Step 2: Convert to fraction form
    7,929/10,937.22 = 6,591.08/x
  3. Step 3: Cross multiply
    7,929x = 10,937.22 × 6,591.08
  4. Step 4: Simplify right side
    7,929x = 72,088,092.00
  5. Step 5: Solve for x
    x = 72,088,092.00/7,929
  6. Step 6: Final answer
    x = 9,091.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.