Home / 8,252.70-12,376.56-2,987.12

Finding the Fourth Proportional to 8,252.70, 12,376.56 and 2,987.12

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Solution

The fourth proportional to 8,252.70, 12,376.56 and 2,987.12 is: 4,479.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,252.70 : 12,376.56 = 2,987.12 : x
  2. Step 2: Convert to fraction form
    8,252.70/12,376.56 = 2,987.12/x
  3. Step 3: Cross multiply
    8,252.70x = 12,376.56 × 2,987.12
  4. Step 4: Simplify right side
    8,252.70x = 36,970,269.91
  5. Step 5: Solve for x
    x = 36,970,269.91/8,252.70
  6. Step 6: Final answer
    x = 4,479.78

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1.5x scale

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.