Home / 10,995.28-15,173.96-6,279.92

Finding the Fourth Proportional to 10,995.28, 15,173.96 and 6,279.92

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Solution

The fourth proportional to 10,995.28, 15,173.96 and 6,279.92 is: 8,666.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,995.28 : 15,173.96 = 6,279.92 : x
  2. Step 2: Convert to fraction form
    10,995.28/15,173.96 = 6,279.92/x
  3. Step 3: Cross multiply
    10,995.28x = 15,173.96 × 6,279.92
  4. Step 4: Simplify right side
    10,995.28x = 95,291,254.88
  5. Step 5: Solve for x
    x = 95,291,254.88/10,995.28
  6. Step 6: Final answer
    x = 8,666.56

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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.