Home / 11,224.10-16,872.60-7,959.80

Finding the Fourth Proportional to 11,224.10, 16,872.60 and 7,959.80

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Solution

The fourth proportional to 11,224.10, 16,872.60 and 7,959.80 is: 11,965.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,224.10 : 16,872.60 = 7,959.80 : x
  2. Step 2: Convert to fraction form
    11,224.10/16,872.60 = 7,959.80/x
  3. Step 3: Cross multiply
    11,224.10x = 16,872.60 × 7,959.80
  4. Step 4: Simplify right side
    11,224.10x = 134,302,521.48
  5. Step 5: Solve for x
    x = 134,302,521.48/11,224.10
  6. Step 6: Final answer
    x = 11,965.55

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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.