Home / 8,917.52-13,378.92-3,074.72

Finding the Fourth Proportional to 8,917.52, 13,378.92 and 3,074.72

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Solution

The fourth proportional to 8,917.52, 13,378.92 and 3,074.72 is: 4,612.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,917.52 : 13,378.92 = 3,074.72 : x
  2. Step 2: Convert to fraction form
    8,917.52/13,378.92 = 3,074.72/x
  3. Step 3: Cross multiply
    8,917.52x = 13,378.92 × 3,074.72
  4. Step 4: Simplify right side
    8,917.52x = 41,136,432.90
  5. Step 5: Solve for x
    x = 41,136,432.90/8,917.52
  6. Step 6: Final answer
    x = 4,612.99

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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.