Home / 8,712.72-13,071.24-2,869.38

Finding the Fourth Proportional to 8,712.72, 13,071.24 and 2,869.38

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Solution

The fourth proportional to 8,712.72, 13,071.24 and 2,869.38 is: 4,304.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,712.72 : 13,071.24 = 2,869.38 : x
  2. Step 2: Convert to fraction form
    8,712.72/13,071.24 = 2,869.38/x
  3. Step 3: Cross multiply
    8,712.72x = 13,071.24 × 2,869.38
  4. Step 4: Simplify right side
    8,712.72x = 37,506,354.63
  5. Step 5: Solve for x
    x = 37,506,354.63/8,712.72
  6. Step 6: Final answer
    x = 4,304.78

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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.