Home / 12,512.20-18,768.28-5,934.79

Finding the Fourth Proportional to 12,512.20, 18,768.28 and 5,934.79

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Solution

The fourth proportional to 12,512.20, 18,768.28 and 5,934.79 is: 8,902.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,512.20 : 18,768.28 = 5,934.79 : x
  2. Step 2: Convert to fraction form
    12,512.20/18,768.28 = 5,934.79/x
  3. Step 3: Cross multiply
    12,512.20x = 18,768.28 × 5,934.79
  4. Step 4: Simplify right side
    12,512.20x = 111,385,800.46
  5. Step 5: Solve for x
    x = 111,385,800.46/12,512.20
  6. Step 6: Final answer
    x = 8,902.18

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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.