Home / 10,995.88-15,179.55-6,279.25

Finding the Fourth Proportional to 10,995.88, 15,179.55 and 6,279.25

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Solution

The fourth proportional to 10,995.88, 15,179.55 and 6,279.25 is: 8,668.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,995.88 : 15,179.55 = 6,279.25 : x
  2. Step 2: Convert to fraction form
    10,995.88/15,179.55 = 6,279.25/x
  3. Step 3: Cross multiply
    10,995.88x = 15,179.55 × 6,279.25
  4. Step 4: Simplify right side
    10,995.88x = 95,316,189.34
  5. Step 5: Solve for x
    x = 95,316,189.34/10,995.88
  6. Step 6: Final answer
    x = 8,668.35

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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.