Home / 8,717.60-13,082.58-3,788.69

Finding the Fourth Proportional to 8,717.60, 13,082.58 and 3,788.69

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Solution

The fourth proportional to 8,717.60, 13,082.58 and 3,788.69 is: 5,685.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,717.60 : 13,082.58 = 3,788.69 : x
  2. Step 2: Convert to fraction form
    8,717.60/13,082.58 = 3,788.69/x
  3. Step 3: Cross multiply
    8,717.60x = 13,082.58 × 3,788.69
  4. Step 4: Simplify right side
    8,717.60x = 49,565,774.61
  5. Step 5: Solve for x
    x = 49,565,774.61/8,717.60
  6. Step 6: Final answer
    x = 5,685.71

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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.