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Finding the Fourth Proportional to 8,098.59, 12,130.27 and 3,929.81

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Solution

The fourth proportional to 8,098.59, 12,130.27 and 3,929.81 is: 5,886.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,098.59 : 12,130.27 = 3,929.81 : x
  2. Step 2: Convert to fraction form
    8,098.59/12,130.27 = 3,929.81/x
  3. Step 3: Cross multiply
    8,098.59x = 12,130.27 × 3,929.81
  4. Step 4: Simplify right side
    8,098.59x = 47,669,585.87
  5. Step 5: Solve for x
    x = 47,669,585.87/8,098.59
  6. Step 6: Final answer
    x = 5,886.16

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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.