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Finding the Fourth Proportional to 8,125.57, 12,134.11 and 7,710.41

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Solution

The fourth proportional to 8,125.57, 12,134.11 and 7,710.41 is: 11,514.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,125.57 : 12,134.11 = 7,710.41 : x
  2. Step 2: Convert to fraction form
    8,125.57/12,134.11 = 7,710.41/x
  3. Step 3: Cross multiply
    8,125.57x = 12,134.11 × 7,710.41
  4. Step 4: Simplify right side
    8,125.57x = 93,558,963.09
  5. Step 5: Solve for x
    x = 93,558,963.09/8,125.57
  6. Step 6: Final answer
    x = 11,514.14

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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.