Home / 10,382.30-15,573.45-3,456.80

Finding the Fourth Proportional to 10,382.30, 15,573.45 and 3,456.80

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Solution

The fourth proportional to 10,382.30, 15,573.45 and 3,456.80 is: 5,185.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,382.30 : 15,573.45 = 3,456.80 : x
  2. Step 2: Convert to fraction form
    10,382.30/15,573.45 = 3,456.80/x
  3. Step 3: Cross multiply
    10,382.30x = 15,573.45 × 3,456.80
  4. Step 4: Simplify right side
    10,382.30x = 53,834,301.96
  5. Step 5: Solve for x
    x = 53,834,301.96/10,382.30
  6. Step 6: Final answer
    x = 5,185.20

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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.