Home / 10,221.87-15,330.95-2,824.75

Finding the Fourth Proportional to 10,221.87, 15,330.95 and 2,824.75

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Solution

The fourth proportional to 10,221.87, 15,330.95 and 2,824.75 is: 4,236.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,221.87 : 15,330.95 = 2,824.75 : x
  2. Step 2: Convert to fraction form
    10,221.87/15,330.95 = 2,824.75/x
  3. Step 3: Cross multiply
    10,221.87x = 15,330.95 × 2,824.75
  4. Step 4: Simplify right side
    10,221.87x = 43,306,101.01
  5. Step 5: Solve for x
    x = 43,306,101.01/10,221.87
  6. Step 6: Final answer
    x = 4,236.61

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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.