Home / 10,408.24-15,620.56-5,480.80

Finding the Fourth Proportional to 10,408.24, 15,620.56 and 5,480.80

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Solution

The fourth proportional to 10,408.24, 15,620.56 and 5,480.80 is: 8,225.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,408.24 : 15,620.56 = 5,480.80 : x
  2. Step 2: Convert to fraction form
    10,408.24/15,620.56 = 5,480.80/x
  3. Step 3: Cross multiply
    10,408.24x = 15,620.56 × 5,480.80
  4. Step 4: Simplify right side
    10,408.24x = 85,613,165.25
  5. Step 5: Solve for x
    x = 85,613,165.25/10,408.24
  6. Step 6: Final answer
    x = 8,225.52

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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.