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Finding the Fourth Proportional to 8,458.01, 12,686.95 and 6,610.68

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Solution

The fourth proportional to 8,458.01, 12,686.95 and 6,610.68 is: 9,915.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,458.01 : 12,686.95 = 6,610.68 : x
  2. Step 2: Convert to fraction form
    8,458.01/12,686.95 = 6,610.68/x
  3. Step 3: Cross multiply
    8,458.01x = 12,686.95 × 6,610.68
  4. Step 4: Simplify right side
    8,458.01x = 83,869,339.96
  5. Step 5: Solve for x
    x = 83,869,339.96/8,458.01
  6. Step 6: Final answer
    x = 9,915.97

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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.