Home / 12,512.52-18,757.86-11,816.34

Finding the Fourth Proportional to 12,512.52, 18,757.86 and 11,816.34

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Solution

The fourth proportional to 12,512.52, 18,757.86 and 11,816.34 is: 17,714.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,512.52 : 18,757.86 = 11,816.34 : x
  2. Step 2: Convert to fraction form
    12,512.52/18,757.86 = 11,816.34/x
  3. Step 3: Cross multiply
    12,512.52x = 18,757.86 × 11,816.34
  4. Step 4: Simplify right side
    12,512.52x = 221,649,251.43
  5. Step 5: Solve for x
    x = 221,649,251.43/12,512.52
  6. Step 6: Final answer
    x = 17,714.20

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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.