Home / 8,869.12-13,306.82-3,938.31

Finding the Fourth Proportional to 8,869.12, 13,306.82 and 3,938.31

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Solution

The fourth proportional to 8,869.12, 13,306.82 and 3,938.31 is: 5,908.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,869.12 : 13,306.82 = 3,938.31 : x
  2. Step 2: Convert to fraction form
    8,869.12/13,306.82 = 3,938.31/x
  3. Step 3: Cross multiply
    8,869.12x = 13,306.82 × 3,938.31
  4. Step 4: Simplify right side
    8,869.12x = 52,406,362.58
  5. Step 5: Solve for x
    x = 52,406,362.58/8,869.12
  6. Step 6: Final answer
    x = 5,908.86

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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.