Home / 10,995.16-15,174.12-6,279.88

Finding the Fourth Proportional to 10,995.16, 15,174.12 and 6,279.88

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Solution

The fourth proportional to 10,995.16, 15,174.12 and 6,279.88 is: 8,666.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,995.16 : 15,174.12 = 6,279.88 : x
  2. Step 2: Convert to fraction form
    10,995.16/15,174.12 = 6,279.88/x
  3. Step 3: Cross multiply
    10,995.16x = 15,174.12 × 6,279.88
  4. Step 4: Simplify right side
    10,995.16x = 95,291,652.71
  5. Step 5: Solve for x
    x = 95,291,652.71/10,995.16
  6. Step 6: Final answer
    x = 8,666.69

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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.