Home / 12,112.76-16,714.62-6,734.78

Finding the Fourth Proportional to 12,112.76, 16,714.62 and 6,734.78

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Solution

The fourth proportional to 12,112.76, 16,714.62 and 6,734.78 is: 9,293.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,112.76 : 16,714.62 = 6,734.78 : x
  2. Step 2: Convert to fraction form
    12,112.76/16,714.62 = 6,734.78/x
  3. Step 3: Cross multiply
    12,112.76x = 16,714.62 × 6,734.78
  4. Step 4: Simplify right side
    12,112.76x = 112,569,204.91
  5. Step 5: Solve for x
    x = 112,569,204.91/12,112.76
  6. Step 6: Final answer
    x = 9,293.44

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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.