Home / 10,221.80-15,324.60-5,604.80

Finding the Fourth Proportional to 10,221.80, 15,324.60 and 5,604.80

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Solution

The fourth proportional to 10,221.80, 15,324.60 and 5,604.80 is: 8,402.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,221.80 : 15,324.60 = 5,604.80 : x
  2. Step 2: Convert to fraction form
    10,221.80/15,324.60 = 5,604.80/x
  3. Step 3: Cross multiply
    10,221.80x = 15,324.60 × 5,604.80
  4. Step 4: Simplify right side
    10,221.80x = 85,891,318.08
  5. Step 5: Solve for x
    x = 85,891,318.08/10,221.80
  6. Step 6: Final answer
    x = 8,402.76

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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.