Home / 8,643.08-12,957.90-3,708.68

Finding the Fourth Proportional to 8,643.08, 12,957.90 and 3,708.68

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Solution

The fourth proportional to 8,643.08, 12,957.90 and 3,708.68 is: 5,560.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,643.08 : 12,957.90 = 3,708.68 : x
  2. Step 2: Convert to fraction form
    8,643.08/12,957.90 = 3,708.68/x
  3. Step 3: Cross multiply
    8,643.08x = 12,957.90 × 3,708.68
  4. Step 4: Simplify right side
    8,643.08x = 48,056,704.57
  5. Step 5: Solve for x
    x = 48,056,704.57/8,643.08
  6. Step 6: Final answer
    x = 5,560.14

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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.