Home / 11,256.90-16,876.68-4,236.78

Finding the Fourth Proportional to 11,256.90, 16,876.68 and 4,236.78

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Solution

The fourth proportional to 11,256.90, 16,876.68 and 4,236.78 is: 6,351.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,256.90 : 16,876.68 = 4,236.78 : x
  2. Step 2: Convert to fraction form
    11,256.90/16,876.68 = 4,236.78/x
  3. Step 3: Cross multiply
    11,256.90x = 16,876.68 × 4,236.78
  4. Step 4: Simplify right side
    11,256.90x = 71,502,780.29
  5. Step 5: Solve for x
    x = 71,502,780.29/11,256.90
  6. Step 6: Final answer
    x = 6,351.91

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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.