Home / 8,712.27-13,066.05-3,780.75

Finding the Fourth Proportional to 8,712.27, 13,066.05 and 3,780.75

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Solution

The fourth proportional to 8,712.27, 13,066.05 and 3,780.75 is: 5,670.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,712.27 : 13,066.05 = 3,780.75 : x
  2. Step 2: Convert to fraction form
    8,712.27/13,066.05 = 3,780.75/x
  3. Step 3: Cross multiply
    8,712.27x = 13,066.05 × 3,780.75
  4. Step 4: Simplify right side
    8,712.27x = 49,399,468.54
  5. Step 5: Solve for x
    x = 49,399,468.54/8,712.27
  6. Step 6: Final answer
    x = 5,670.10

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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.