Home / 9,199.44-12,695.52-5,220.72

Finding the Fourth Proportional to 9,199.44, 12,695.52 and 5,220.72

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Solution

The fourth proportional to 9,199.44, 12,695.52 and 5,220.72 is: 7,204.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,199.44 : 12,695.52 = 5,220.72 : x
  2. Step 2: Convert to fraction form
    9,199.44/12,695.52 = 5,220.72/x
  3. Step 3: Cross multiply
    9,199.44x = 12,695.52 × 5,220.72
  4. Step 4: Simplify right side
    9,199.44x = 66,279,755.17
  5. Step 5: Solve for x
    x = 66,279,755.17/9,199.44
  6. Step 6: Final answer
    x = 7,204.76

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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.