Home / 8,712.08-13,060.56-3,781.92

Finding the Fourth Proportional to 8,712.08, 13,060.56 and 3,781.92

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Solution

The fourth proportional to 8,712.08, 13,060.56 and 3,781.92 is: 5,669.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,712.08 : 13,060.56 = 3,781.92 : x
  2. Step 2: Convert to fraction form
    8,712.08/13,060.56 = 3,781.92/x
  3. Step 3: Cross multiply
    8,712.08x = 13,060.56 × 3,781.92
  4. Step 4: Simplify right side
    8,712.08x = 49,393,993.08
  5. Step 5: Solve for x
    x = 49,393,993.08/8,712.08
  6. Step 6: Final answer
    x = 5,669.60

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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.