Home / 11,218.38-15,481.16-6,503.10

Finding the Fourth Proportional to 11,218.38, 15,481.16 and 6,503.10

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Solution

The fourth proportional to 11,218.38, 15,481.16 and 6,503.10 is: 8,974.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,218.38 : 15,481.16 = 6,503.10 : x
  2. Step 2: Convert to fraction form
    11,218.38/15,481.16 = 6,503.10/x
  3. Step 3: Cross multiply
    11,218.38x = 15,481.16 × 6,503.10
  4. Step 4: Simplify right side
    11,218.38x = 100,675,531.60
  5. Step 5: Solve for x
    x = 100,675,531.60/11,218.38
  6. Step 6: Final answer
    x = 8,974.16

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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.