Home / 10,986.92-15,161.90-5,951.12

Finding the Fourth Proportional to 10,986.92, 15,161.90 and 5,951.12

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Solution

The fourth proportional to 10,986.92, 15,161.90 and 5,951.12 is: 8,212.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,986.92 : 15,161.90 = 5,951.12 : x
  2. Step 2: Convert to fraction form
    10,986.92/15,161.90 = 5,951.12/x
  3. Step 3: Cross multiply
    10,986.92x = 15,161.90 × 5,951.12
  4. Step 4: Simplify right side
    10,986.92x = 90,230,339.11
  5. Step 5: Solve for x
    x = 90,230,339.11/10,986.92
  6. Step 6: Final answer
    x = 8,212.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.