Home / 11,040.20-16,561.10-6,648.20

Finding the Fourth Proportional to 11,040.20, 16,561.10 and 6,648.20

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Solution

The fourth proportional to 11,040.20, 16,561.10 and 6,648.20 is: 9,972.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,040.20 : 16,561.10 = 6,648.20 : x
  2. Step 2: Convert to fraction form
    11,040.20/16,561.10 = 6,648.20/x
  3. Step 3: Cross multiply
    11,040.20x = 16,561.10 × 6,648.20
  4. Step 4: Simplify right side
    11,040.20x = 110,101,505.02
  5. Step 5: Solve for x
    x = 110,101,505.02/11,040.20
  6. Step 6: Final answer
    x = 9,972.78

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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.