Home / 10,279.56-15,329.10-10,186.02

Finding the Fourth Proportional to 10,279.56, 15,329.10 and 10,186.02

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Solution

The fourth proportional to 10,279.56, 15,329.10 and 10,186.02 is: 15,189.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,279.56 : 15,329.10 = 10,186.02 : x
  2. Step 2: Convert to fraction form
    10,279.56/15,329.10 = 10,186.02/x
  3. Step 3: Cross multiply
    10,279.56x = 15,329.10 × 10,186.02
  4. Step 4: Simplify right side
    10,279.56x = 156,142,519.18
  5. Step 5: Solve for x
    x = 156,142,519.18/10,279.56
  6. Step 6: Final answer
    x = 15,189.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.