Home / 10,105.08-15,176.44-8,260.12

Finding the Fourth Proportional to 10,105.08, 15,176.44 and 8,260.12

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Solution

The fourth proportional to 10,105.08, 15,176.44 and 8,260.12 is: 12,405.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,105.08 : 15,176.44 = 8,260.12 : x
  2. Step 2: Convert to fraction form
    10,105.08/15,176.44 = 8,260.12/x
  3. Step 3: Cross multiply
    10,105.08x = 15,176.44 × 8,260.12
  4. Step 4: Simplify right side
    10,105.08x = 125,359,215.57
  5. Step 5: Solve for x
    x = 125,359,215.57/10,105.08
  6. Step 6: Final answer
    x = 12,405.56

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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.