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Finding the Fourth Proportional to 8,418.52, 12,600.24 and 7,610.14

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Solution

The fourth proportional to 8,418.52, 12,600.24 and 7,610.14 is: 11,390.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.52 : 12,600.24 = 7,610.14 : x
  2. Step 2: Convert to fraction form
    8,418.52/12,600.24 = 7,610.14/x
  3. Step 3: Cross multiply
    8,418.52x = 12,600.24 × 7,610.14
  4. Step 4: Simplify right side
    8,418.52x = 95,889,590.43
  5. Step 5: Solve for x
    x = 95,889,590.43/8,418.52
  6. Step 6: Final answer
    x = 11,390.31

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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.