Home / 11,521.20-17,286.65-6,850.13

Finding the Fourth Proportional to 11,521.20, 17,286.65 and 6,850.13

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Solution

The fourth proportional to 11,521.20, 17,286.65 and 6,850.13 is: 10,278.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,521.20 : 17,286.65 = 6,850.13 : x
  2. Step 2: Convert to fraction form
    11,521.20/17,286.65 = 6,850.13/x
  3. Step 3: Cross multiply
    11,521.20x = 17,286.65 × 6,850.13
  4. Step 4: Simplify right side
    11,521.20x = 118,415,799.76
  5. Step 5: Solve for x
    x = 118,415,799.76/11,521.20
  6. Step 6: Final answer
    x = 10,278.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.