Home / 7,404.28-11,108.24-5,217.28

Finding the Fourth Proportional to 7,404.28, 11,108.24 and 5,217.28

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Solution

The fourth proportional to 7,404.28, 11,108.24 and 5,217.28 is: 7,827.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,404.28 : 11,108.24 = 5,217.28 : x
  2. Step 2: Convert to fraction form
    7,404.28/11,108.24 = 5,217.28/x
  3. Step 3: Cross multiply
    7,404.28x = 11,108.24 × 5,217.28
  4. Step 4: Simplify right side
    7,404.28x = 57,954,798.39
  5. Step 5: Solve for x
    x = 57,954,798.39/7,404.28
  6. Step 6: Final answer
    x = 7,827.20

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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.