Home / 8,353.13-12,529.49-3,419.42

Finding the Fourth Proportional to 8,353.13, 12,529.49 and 3,419.42

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Solution

The fourth proportional to 8,353.13, 12,529.49 and 3,419.42 is: 5,129.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,353.13 : 12,529.49 = 3,419.42 : x
  2. Step 2: Convert to fraction form
    8,353.13/12,529.49 = 3,419.42/x
  3. Step 3: Cross multiply
    8,353.13x = 12,529.49 × 3,419.42
  4. Step 4: Simplify right side
    8,353.13x = 42,843,508.95
  5. Step 5: Solve for x
    x = 42,843,508.95/8,353.13
  6. Step 6: Final answer
    x = 5,129.04

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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.