Home / 11,099.20-15,311.13-7,514.29

Finding the Fourth Proportional to 11,099.20, 15,311.13 and 7,514.29

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Solution

The fourth proportional to 11,099.20, 15,311.13 and 7,514.29 is: 10,365.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,099.20 : 15,311.13 = 7,514.29 : x
  2. Step 2: Convert to fraction form
    11,099.20/15,311.13 = 7,514.29/x
  3. Step 3: Cross multiply
    11,099.20x = 15,311.13 × 7,514.29
  4. Step 4: Simplify right side
    11,099.20x = 115,052,271.05
  5. Step 5: Solve for x
    x = 115,052,271.05/11,099.20
  6. Step 6: Final answer
    x = 10,365.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.