Home / 10,988.16-15,163.92-6,272.88

Finding the Fourth Proportional to 10,988.16, 15,163.92 and 6,272.88

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Solution

The fourth proportional to 10,988.16, 15,163.92 and 6,272.88 is: 8,656.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,988.16 : 15,163.92 = 6,272.88 : x
  2. Step 2: Convert to fraction form
    10,988.16/15,163.92 = 6,272.88/x
  3. Step 3: Cross multiply
    10,988.16x = 15,163.92 × 6,272.88
  4. Step 4: Simplify right side
    10,988.16x = 95,121,450.49
  5. Step 5: Solve for x
    x = 95,121,450.49/10,988.16
  6. Step 6: Final answer
    x = 8,656.72

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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.