Home / 10,186.74-15,279.66-3,613.92

Finding the Fourth Proportional to 10,186.74, 15,279.66 and 3,613.92

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Solution

The fourth proportional to 10,186.74, 15,279.66 and 3,613.92 is: 5,420.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,186.74 : 15,279.66 = 3,613.92 : x
  2. Step 2: Convert to fraction form
    10,186.74/15,279.66 = 3,613.92/x
  3. Step 3: Cross multiply
    10,186.74x = 15,279.66 × 3,613.92
  4. Step 4: Simplify right side
    10,186.74x = 55,219,468.87
  5. Step 5: Solve for x
    x = 55,219,468.87/10,186.74
  6. Step 6: Final answer
    x = 5,420.72

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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.