Home / 9,127.85-12,597.20-5,149.79

Finding the Fourth Proportional to 9,127.85, 12,597.20 and 5,149.79

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Solution

The fourth proportional to 9,127.85, 12,597.20 and 5,149.79 is: 7,107.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,127.85 : 12,597.20 = 5,149.79 : x
  2. Step 2: Convert to fraction form
    9,127.85/12,597.20 = 5,149.79/x
  3. Step 3: Cross multiply
    9,127.85x = 12,597.20 × 5,149.79
  4. Step 4: Simplify right side
    9,127.85x = 64,872,845.85
  5. Step 5: Solve for x
    x = 64,872,845.85/9,127.85
  6. Step 6: Final answer
    x = 7,107.14

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Similar ratio
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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.