Home / 10,126.52-15,189.66-4,279.16

Finding the Fourth Proportional to 10,126.52, 15,189.66 and 4,279.16

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Solution

The fourth proportional to 10,126.52, 15,189.66 and 4,279.16 is: 6,418.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,126.52 : 15,189.66 = 4,279.16 : x
  2. Step 2: Convert to fraction form
    10,126.52/15,189.66 = 4,279.16/x
  3. Step 3: Cross multiply
    10,126.52x = 15,189.66 × 4,279.16
  4. Step 4: Simplify right side
    10,126.52x = 64,998,985.49
  5. Step 5: Solve for x
    x = 64,998,985.49/10,126.52
  6. Step 6: Final answer
    x = 6,418.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.