Home / 10,221.68-15,330.99-3,200.06

Finding the Fourth Proportional to 10,221.68, 15,330.99 and 3,200.06

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Solution

The fourth proportional to 10,221.68, 15,330.99 and 3,200.06 is: 4,799.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,221.68 : 15,330.99 = 3,200.06 : x
  2. Step 2: Convert to fraction form
    10,221.68/15,330.99 = 3,200.06/x
  3. Step 3: Cross multiply
    10,221.68x = 15,330.99 × 3,200.06
  4. Step 4: Simplify right side
    10,221.68x = 49,060,087.86
  5. Step 5: Solve for x
    x = 49,060,087.86/10,221.68
  6. Step 6: Final answer
    x = 4,799.61

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1.5x scale

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.