Home / 10,221.18-15,330.24-3,199.56

Finding the Fourth Proportional to 10,221.18, 15,330.24 and 3,199.56

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Solution

The fourth proportional to 10,221.18, 15,330.24 and 3,199.56 is: 4,798.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,221.18 : 15,330.24 = 3,199.56 : x
  2. Step 2: Convert to fraction form
    10,221.18/15,330.24 = 3,199.56/x
  3. Step 3: Cross multiply
    10,221.18x = 15,330.24 × 3,199.56
  4. Step 4: Simplify right side
    10,221.18x = 49,050,022.69
  5. Step 5: Solve for x
    x = 49,050,022.69/10,221.18
  6. Step 6: Final answer
    x = 4,798.86

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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.