Home / 10,155.27-15,195.97-8,383.80

Finding the Fourth Proportional to 10,155.27, 15,195.97 and 8,383.80

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Solution

The fourth proportional to 10,155.27, 15,195.97 and 8,383.80 is: 12,545.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,155.27 : 15,195.97 = 8,383.80 : x
  2. Step 2: Convert to fraction form
    10,155.27/15,195.97 = 8,383.80/x
  3. Step 3: Cross multiply
    10,155.27x = 15,195.97 × 8,383.80
  4. Step 4: Simplify right side
    10,155.27x = 127,399,973.29
  5. Step 5: Solve for x
    x = 127,399,973.29/10,155.27
  6. Step 6: Final answer
    x = 12,545.21

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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.