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Finding the Fourth Proportional to 8,534.79, 12,802.19 and 2,691.86

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Solution

The fourth proportional to 8,534.79, 12,802.19 and 2,691.86 is: 4,037.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,534.79 : 12,802.19 = 2,691.86 : x
  2. Step 2: Convert to fraction form
    8,534.79/12,802.19 = 2,691.86/x
  3. Step 3: Cross multiply
    8,534.79x = 12,802.19 × 2,691.86
  4. Step 4: Simplify right side
    8,534.79x = 34,461,683.59
  5. Step 5: Solve for x
    x = 34,461,683.59/8,534.79
  6. Step 6: Final answer
    x = 4,037.79

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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.