Home / 9,222.85-12,726.07-5,687.20

Finding the Fourth Proportional to 9,222.85, 12,726.07 and 5,687.20

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Solution

The fourth proportional to 9,222.85, 12,726.07 and 5,687.20 is: 7,847.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,222.85 : 12,726.07 = 5,687.20 : x
  2. Step 2: Convert to fraction form
    9,222.85/12,726.07 = 5,687.20/x
  3. Step 3: Cross multiply
    9,222.85x = 12,726.07 × 5,687.20
  4. Step 4: Simplify right side
    9,222.85x = 72,375,705.30
  5. Step 5: Solve for x
    x = 72,375,705.30/9,222.85
  6. Step 6: Final answer
    x = 7,847.43

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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.