Home / 10,221.45-15,335.96-4,382.61

Finding the Fourth Proportional to 10,221.45, 15,335.96 and 4,382.61

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Solution

The fourth proportional to 10,221.45, 15,335.96 and 4,382.61 is: 6,575.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,221.45 : 15,335.96 = 4,382.61 : x
  2. Step 2: Convert to fraction form
    10,221.45/15,335.96 = 4,382.61/x
  3. Step 3: Cross multiply
    10,221.45x = 15,335.96 × 4,382.61
  4. Step 4: Simplify right side
    10,221.45x = 67,211,509.74
  5. Step 5: Solve for x
    x = 67,211,509.74/10,221.45
  6. Step 6: Final answer
    x = 6,575.54

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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.