Home / 9,221.40-12,726.68-5,635.62

Finding the Fourth Proportional to 9,221.40, 12,726.68 and 5,635.62

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Solution

The fourth proportional to 9,221.40, 12,726.68 and 5,635.62 is: 7,777.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,221.40 : 12,726.68 = 5,635.62 : x
  2. Step 2: Convert to fraction form
    9,221.40/12,726.68 = 5,635.62/x
  3. Step 3: Cross multiply
    9,221.40x = 12,726.68 × 5,635.62
  4. Step 4: Simplify right side
    9,221.40x = 71,722,704.16
  5. Step 5: Solve for x
    x = 71,722,704.16/9,221.40
  6. Step 6: Final answer
    x = 7,777.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.