Home / 11,239.92-16,862.04-4,313.88

Finding the Fourth Proportional to 11,239.92, 16,862.04 and 4,313.88

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Solution

The fourth proportional to 11,239.92, 16,862.04 and 4,313.88 is: 6,471.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,239.92 : 16,862.04 = 4,313.88 : x
  2. Step 2: Convert to fraction form
    11,239.92/16,862.04 = 4,313.88/x
  3. Step 3: Cross multiply
    11,239.92x = 16,862.04 × 4,313.88
  4. Step 4: Simplify right side
    11,239.92x = 72,740,817.12
  5. Step 5: Solve for x
    x = 72,740,817.12/11,239.92
  6. Step 6: Final answer
    x = 6,471.65

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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.