Home / 8,909.40-13,353.76-3,359.19

Finding the Fourth Proportional to 8,909.40, 13,353.76 and 3,359.19

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Solution

The fourth proportional to 8,909.40, 13,353.76 and 3,359.19 is: 5,034.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,909.40 : 13,353.76 = 3,359.19 : x
  2. Step 2: Convert to fraction form
    8,909.40/13,353.76 = 3,359.19/x
  3. Step 3: Cross multiply
    8,909.40x = 13,353.76 × 3,359.19
  4. Step 4: Simplify right side
    8,909.40x = 44,857,817.05
  5. Step 5: Solve for x
    x = 44,857,817.05/8,909.40
  6. Step 6: Final answer
    x = 5,034.89

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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.