Home / 11,135.10-16,683.45-5,279.10

Finding the Fourth Proportional to 11,135.10, 16,683.45 and 5,279.10

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Solution

The fourth proportional to 11,135.10, 16,683.45 and 5,279.10 is: 7,909.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,135.10 : 16,683.45 = 5,279.10 : x
  2. Step 2: Convert to fraction form
    11,135.10/16,683.45 = 5,279.10/x
  3. Step 3: Cross multiply
    11,135.10x = 16,683.45 × 5,279.10
  4. Step 4: Simplify right side
    11,135.10x = 88,073,600.90
  5. Step 5: Solve for x
    x = 88,073,600.90/11,135.10
  6. Step 6: Final answer
    x = 7,909.55

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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.