Home / 15,440.20-23,127.90-12,137.56

Finding the Fourth Proportional to 15,440.20, 23,127.90 and 12,137.56

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Solution

The fourth proportional to 15,440.20, 23,127.90 and 12,137.56 is: 18,180.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,440.20 : 23,127.90 = 12,137.56 : x
  2. Step 2: Convert to fraction form
    15,440.20/23,127.90 = 12,137.56/x
  3. Step 3: Cross multiply
    15,440.20x = 23,127.90 × 12,137.56
  4. Step 4: Simplify right side
    15,440.20x = 280,716,273.92
  5. Step 5: Solve for x
    x = 280,716,273.92/15,440.20
  6. Step 6: Final answer
    x = 18,180.87

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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.