Home / 10,968.87-15,125.99-8,286.69

Finding the Fourth Proportional to 10,968.87, 15,125.99 and 8,286.69

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Solution

The fourth proportional to 10,968.87, 15,125.99 and 8,286.69 is: 11,427.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,968.87 : 15,125.99 = 8,286.69 : x
  2. Step 2: Convert to fraction form
    10,968.87/15,125.99 = 8,286.69/x
  3. Step 3: Cross multiply
    10,968.87x = 15,125.99 × 8,286.69
  4. Step 4: Simplify right side
    10,968.87x = 125,344,348.64
  5. Step 5: Solve for x
    x = 125,344,348.64/10,968.87
  6. Step 6: Final answer
    x = 11,427.28

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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.