Home / 10,995.68-15,173.70-6,279.04

Finding the Fourth Proportional to 10,995.68, 15,173.70 and 6,279.04

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Solution

The fourth proportional to 10,995.68, 15,173.70 and 6,279.04 is: 8,664.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,995.68 : 15,173.70 = 6,279.04 : x
  2. Step 2: Convert to fraction form
    10,995.68/15,173.70 = 6,279.04/x
  3. Step 3: Cross multiply
    10,995.68x = 15,173.70 × 6,279.04
  4. Step 4: Simplify right side
    10,995.68x = 95,276,269.25
  5. Step 5: Solve for x
    x = 95,276,269.25/10,995.68
  6. Step 6: Final answer
    x = 8,664.88

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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.