Home / 11,447.28-17,161.20-10,902.96

Finding the Fourth Proportional to 11,447.28, 17,161.20 and 10,902.96

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Solution

The fourth proportional to 11,447.28, 17,161.20 and 10,902.96 is: 16,345.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,447.28 : 17,161.20 = 10,902.96 : x
  2. Step 2: Convert to fraction form
    11,447.28/17,161.20 = 10,902.96/x
  3. Step 3: Cross multiply
    11,447.28x = 17,161.20 × 10,902.96
  4. Step 4: Simplify right side
    11,447.28x = 187,107,877.15
  5. Step 5: Solve for x
    x = 187,107,877.15/11,447.28
  6. Step 6: Final answer
    x = 16,345.18

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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.