Home / 7,408.28-11,114.24-5,221.28

Finding the Fourth Proportional to 7,408.28, 11,114.24 and 5,221.28

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Solution

The fourth proportional to 7,408.28, 11,114.24 and 5,221.28 is: 7,833.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,408.28 : 11,114.24 = 5,221.28 : x
  2. Step 2: Convert to fraction form
    7,408.28/11,114.24 = 5,221.28/x
  3. Step 3: Cross multiply
    7,408.28x = 11,114.24 × 5,221.28
  4. Step 4: Simplify right side
    7,408.28x = 58,030,560.71
  5. Step 5: Solve for x
    x = 58,030,560.71/7,408.28
  6. Step 6: Final answer
    x = 7,833.20

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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.