Home / 7,478.72-11,218.56-5,726.24

Finding the Fourth Proportional to 7,478.72, 11,218.56 and 5,726.24

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Solution

The fourth proportional to 7,478.72, 11,218.56 and 5,726.24 is: 8,589.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,478.72 : 11,218.56 = 5,726.24 : x
  2. Step 2: Convert to fraction form
    7,478.72/11,218.56 = 5,726.24/x
  3. Step 3: Cross multiply
    7,478.72x = 11,218.56 × 5,726.24
  4. Step 4: Simplify right side
    7,478.72x = 64,240,167.01
  5. Step 5: Solve for x
    x = 64,240,167.01/7,478.72
  6. Step 6: Final answer
    x = 8,589.73

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Similar ratio
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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.