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Finding the Fourth Proportional to 8,459.71, 12,686.02 and 3,193.83

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Solution

The fourth proportional to 8,459.71, 12,686.02 and 3,193.83 is: 4,789.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,459.71 : 12,686.02 = 3,193.83 : x
  2. Step 2: Convert to fraction form
    8,459.71/12,686.02 = 3,193.83/x
  3. Step 3: Cross multiply
    8,459.71x = 12,686.02 × 3,193.83
  4. Step 4: Simplify right side
    8,459.71x = 40,516,983.27
  5. Step 5: Solve for x
    x = 40,516,983.27/8,459.71
  6. Step 6: Final answer
    x = 4,789.41

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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.