Home / 10,188.70-15,279.60-3,613.96

Finding the Fourth Proportional to 10,188.70, 15,279.60 and 3,613.96

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Solution

The fourth proportional to 10,188.70, 15,279.60 and 3,613.96 is: 5,419.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,188.70 : 15,279.60 = 3,613.96 : x
  2. Step 2: Convert to fraction form
    10,188.70/15,279.60 = 3,613.96/x
  3. Step 3: Cross multiply
    10,188.70x = 15,279.60 × 3,613.96
  4. Step 4: Simplify right side
    10,188.70x = 55,219,863.22
  5. Step 5: Solve for x
    x = 55,219,863.22/10,188.70
  6. Step 6: Final answer
    x = 5,419.72

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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.