Home / 10,382.40-15,573.60-3,456.90

Finding the Fourth Proportional to 10,382.40, 15,573.60 and 3,456.90

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Solution

The fourth proportional to 10,382.40, 15,573.60 and 3,456.90 is: 5,185.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,382.40 : 15,573.60 = 3,456.90 : x
  2. Step 2: Convert to fraction form
    10,382.40/15,573.60 = 3,456.90/x
  3. Step 3: Cross multiply
    10,382.40x = 15,573.60 × 3,456.90
  4. Step 4: Simplify right side
    10,382.40x = 53,836,377.84
  5. Step 5: Solve for x
    x = 53,836,377.84/10,382.40
  6. Step 6: Final answer
    x = 5,185.35

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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.