Home / 11,207.28-16,815.10-5,286.04

Finding the Fourth Proportional to 11,207.28, 16,815.10 and 5,286.04

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Solution

The fourth proportional to 11,207.28, 16,815.10 and 5,286.04 is: 7,931.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,207.28 : 16,815.10 = 5,286.04 : x
  2. Step 2: Convert to fraction form
    11,207.28/16,815.10 = 5,286.04/x
  3. Step 3: Cross multiply
    11,207.28x = 16,815.10 × 5,286.04
  4. Step 4: Simplify right side
    11,207.28x = 88,885,291.20
  5. Step 5: Solve for x
    x = 88,885,291.20/11,207.28
  6. Step 6: Final answer
    x = 7,931.03

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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.