Home / 10,195.10-15,295.38-8,122.92

Finding the Fourth Proportional to 10,195.10, 15,295.38 and 8,122.92

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Solution

The fourth proportional to 10,195.10, 15,295.38 and 8,122.92 is: 12,186.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,195.10 : 15,295.38 = 8,122.92 : x
  2. Step 2: Convert to fraction form
    10,195.10/15,295.38 = 8,122.92/x
  3. Step 3: Cross multiply
    10,195.10x = 15,295.38 × 8,122.92
  4. Step 4: Simplify right side
    10,195.10x = 124,243,148.11
  5. Step 5: Solve for x
    x = 124,243,148.11/10,195.10
  6. Step 6: Final answer
    x = 12,186.56

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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.