Home / 8,161.38-12,237.10-3,478.76

Finding the Fourth Proportional to 8,161.38, 12,237.10 and 3,478.76

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Solution

The fourth proportional to 8,161.38, 12,237.10 and 3,478.76 is: 5,216.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,161.38 : 12,237.10 = 3,478.76 : x
  2. Step 2: Convert to fraction form
    8,161.38/12,237.10 = 3,478.76/x
  3. Step 3: Cross multiply
    8,161.38x = 12,237.10 × 3,478.76
  4. Step 4: Simplify right side
    8,161.38x = 42,569,934.00
  5. Step 5: Solve for x
    x = 42,569,934.00/8,161.38
  6. Step 6: Final answer
    x = 5,216.02

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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.