Home / 11,134.97-15,358.88-7,161.11

Finding the Fourth Proportional to 11,134.97, 15,358.88 and 7,161.11

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Solution

The fourth proportional to 11,134.97, 15,358.88 and 7,161.11 is: 9,877.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,134.97 : 15,358.88 = 7,161.11 : x
  2. Step 2: Convert to fraction form
    11,134.97/15,358.88 = 7,161.11/x
  3. Step 3: Cross multiply
    11,134.97x = 15,358.88 × 7,161.11
  4. Step 4: Simplify right side
    11,134.97x = 109,986,593.35
  5. Step 5: Solve for x
    x = 109,986,593.35/11,134.97
  6. Step 6: Final answer
    x = 9,877.58

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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.