Home / 11,122.56-16,689.51-5,279.22

Finding the Fourth Proportional to 11,122.56, 16,689.51 and 5,279.22

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Solution

The fourth proportional to 11,122.56, 16,689.51 and 5,279.22 is: 7,921.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,122.56 : 16,689.51 = 5,279.22 : x
  2. Step 2: Convert to fraction form
    11,122.56/16,689.51 = 5,279.22/x
  3. Step 3: Cross multiply
    11,122.56x = 16,689.51 × 5,279.22
  4. Step 4: Simplify right side
    11,122.56x = 88,107,594.98
  5. Step 5: Solve for x
    x = 88,107,594.98/11,122.56
  6. Step 6: Final answer
    x = 7,921.52

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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.