Home / 10,958.14-15,121.11-6,481.02

Finding the Fourth Proportional to 10,958.14, 15,121.11 and 6,481.02

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Solution

The fourth proportional to 10,958.14, 15,121.11 and 6,481.02 is: 8,943.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,958.14 : 15,121.11 = 6,481.02 : x
  2. Step 2: Convert to fraction form
    10,958.14/15,121.11 = 6,481.02/x
  3. Step 3: Cross multiply
    10,958.14x = 15,121.11 × 6,481.02
  4. Step 4: Simplify right side
    10,958.14x = 98,000,216.33
  5. Step 5: Solve for x
    x = 98,000,216.33/10,958.14
  6. Step 6: Final answer
    x = 8,943.14

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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.