Home / 8,248.80-12,377.64-5,476.78

Finding the Fourth Proportional to 8,248.80, 12,377.64 and 5,476.78

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Solution

The fourth proportional to 8,248.80, 12,377.64 and 5,476.78 is: 8,218.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,248.80 : 12,377.64 = 5,476.78 : x
  2. Step 2: Convert to fraction form
    8,248.80/12,377.64 = 5,476.78/x
  3. Step 3: Cross multiply
    8,248.80x = 12,377.64 × 5,476.78
  4. Step 4: Simplify right side
    8,248.80x = 67,789,611.20
  5. Step 5: Solve for x
    x = 67,789,611.20/8,248.80
  6. Step 6: Final answer
    x = 8,218.12

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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.