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Finding the Fourth Proportional to 8,855.16, 13,301.19 and 7,471.20

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Solution

The fourth proportional to 8,855.16, 13,301.19 and 7,471.20 is: 11,222.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,855.16 : 13,301.19 = 7,471.20 : x
  2. Step 2: Convert to fraction form
    8,855.16/13,301.19 = 7,471.20/x
  3. Step 3: Cross multiply
    8,855.16x = 13,301.19 × 7,471.20
  4. Step 4: Simplify right side
    8,855.16x = 99,375,850.73
  5. Step 5: Solve for x
    x = 99,375,850.73/8,855.16
  6. Step 6: Final answer
    x = 11,222.37

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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.