Home / 10,988.38-15,163.32-6,512.56

Finding the Fourth Proportional to 10,988.38, 15,163.32 and 6,512.56

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Solution

The fourth proportional to 10,988.38, 15,163.32 and 6,512.56 is: 8,986.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,988.38 : 15,163.32 = 6,512.56 : x
  2. Step 2: Convert to fraction form
    10,988.38/15,163.32 = 6,512.56/x
  3. Step 3: Cross multiply
    10,988.38x = 15,163.32 × 6,512.56
  4. Step 4: Simplify right side
    10,988.38x = 98,752,031.30
  5. Step 5: Solve for x
    x = 98,752,031.30/10,988.38
  6. Step 6: Final answer
    x = 8,986.95

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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.