Home / 8,781.30-13,177.14-3,238.56

Finding the Fourth Proportional to 8,781.30, 13,177.14 and 3,238.56

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Solution

The fourth proportional to 8,781.30, 13,177.14 and 3,238.56 is: 4,859.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,781.30 : 13,177.14 = 3,238.56 : x
  2. Step 2: Convert to fraction form
    8,781.30/13,177.14 = 3,238.56/x
  3. Step 3: Cross multiply
    8,781.30x = 13,177.14 × 3,238.56
  4. Step 4: Simplify right side
    8,781.30x = 42,674,958.52
  5. Step 5: Solve for x
    x = 42,674,958.52/8,781.30
  6. Step 6: Final answer
    x = 4,859.75

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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.