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Finding the Fourth Proportional to 8,308.68, 12,460.20 and 2,761.02

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Solution

The fourth proportional to 8,308.68, 12,460.20 and 2,761.02 is: 4,140.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,308.68 : 12,460.20 = 2,761.02 : x
  2. Step 2: Convert to fraction form
    8,308.68/12,460.20 = 2,761.02/x
  3. Step 3: Cross multiply
    8,308.68x = 12,460.20 × 2,761.02
  4. Step 4: Simplify right side
    8,308.68x = 34,402,861.40
  5. Step 5: Solve for x
    x = 34,402,861.40/8,308.68
  6. Step 6: Final answer
    x = 4,140.59

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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.