Home / 11,003.68-15,186.24-6,288.80

Finding the Fourth Proportional to 11,003.68, 15,186.24 and 6,288.80

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Solution

The fourth proportional to 11,003.68, 15,186.24 and 6,288.80 is: 8,679.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,003.68 : 15,186.24 = 6,288.80 : x
  2. Step 2: Convert to fraction form
    11,003.68/15,186.24 = 6,288.80/x
  3. Step 3: Cross multiply
    11,003.68x = 15,186.24 × 6,288.80
  4. Step 4: Simplify right side
    11,003.68x = 95,503,226.11
  5. Step 5: Solve for x
    x = 95,503,226.11/11,003.68
  6. Step 6: Final answer
    x = 8,679.21

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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.