Home / 10,081.27-15,121.91-8,346.25

Finding the Fourth Proportional to 10,081.27, 15,121.91 and 8,346.25

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Solution

The fourth proportional to 10,081.27, 15,121.91 and 8,346.25 is: 12,519.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,081.27 : 15,121.91 = 8,346.25 : x
  2. Step 2: Convert to fraction form
    10,081.27/15,121.91 = 8,346.25/x
  3. Step 3: Cross multiply
    10,081.27x = 15,121.91 × 8,346.25
  4. Step 4: Simplify right side
    10,081.27x = 126,211,241.34
  5. Step 5: Solve for x
    x = 126,211,241.34/10,081.27
  6. Step 6: Final answer
    x = 12,519.38

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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.