Home / 11,087.20-15,294.30-6,839.14

Finding the Fourth Proportional to 11,087.20, 15,294.30 and 6,839.14

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Solution

The fourth proportional to 11,087.20, 15,294.30 and 6,839.14 is: 9,434.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,087.20 : 15,294.30 = 6,839.14 : x
  2. Step 2: Convert to fraction form
    11,087.20/15,294.30 = 6,839.14/x
  3. Step 3: Cross multiply
    11,087.20x = 15,294.30 × 6,839.14
  4. Step 4: Simplify right side
    11,087.20x = 104,599,858.90
  5. Step 5: Solve for x
    x = 104,599,858.90/11,087.20
  6. Step 6: Final answer
    x = 9,434.29

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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.