Home / 8,781.56-13,177.53-3,238.79

Finding the Fourth Proportional to 8,781.56, 13,177.53 and 3,238.79

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Solution

The fourth proportional to 8,781.56, 13,177.53 and 3,238.79 is: 4,860.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,781.56 : 13,177.53 = 3,238.79 : x
  2. Step 2: Convert to fraction form
    8,781.56/13,177.53 = 3,238.79/x
  3. Step 3: Cross multiply
    8,781.56x = 13,177.53 × 3,238.79
  4. Step 4: Simplify right side
    8,781.56x = 42,679,285.33
  5. Step 5: Solve for x
    x = 42,679,285.33/8,781.56
  6. Step 6: Final answer
    x = 4,860.11

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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.