Home / 8,157.28-12,240.54-3,476.80

Finding the Fourth Proportional to 8,157.28, 12,240.54 and 3,476.80

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Solution

The fourth proportional to 8,157.28, 12,240.54 and 3,476.80 is: 5,217.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,157.28 : 12,240.54 = 3,476.80 : x
  2. Step 2: Convert to fraction form
    8,157.28/12,240.54 = 3,476.80/x
  3. Step 3: Cross multiply
    8,157.28x = 12,240.54 × 3,476.80
  4. Step 4: Simplify right side
    8,157.28x = 42,557,909.47
  5. Step 5: Solve for x
    x = 42,557,909.47/8,157.28
  6. Step 6: Final answer
    x = 5,217.17

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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.