Home / 7,747.28-11,616.24-3,124.88

Finding the Fourth Proportional to 7,747.28, 11,616.24 and 3,124.88

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Solution

The fourth proportional to 7,747.28, 11,616.24 and 3,124.88 is: 4,685.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,747.28 : 11,616.24 = 3,124.88 : x
  2. Step 2: Convert to fraction form
    7,747.28/11,616.24 = 3,124.88/x
  3. Step 3: Cross multiply
    7,747.28x = 11,616.24 × 3,124.88
  4. Step 4: Simplify right side
    7,747.28x = 36,299,356.05
  5. Step 5: Solve for x
    x = 36,299,356.05/7,747.28
  6. Step 6: Final answer
    x = 4,685.43

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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.