Home / 11,247.68-15,521.88-6,211.76

Finding the Fourth Proportional to 11,247.68, 15,521.88 and 6,211.76

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Solution

The fourth proportional to 11,247.68, 15,521.88 and 6,211.76 is: 8,572.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,247.68 : 15,521.88 = 6,211.76 : x
  2. Step 2: Convert to fraction form
    11,247.68/15,521.88 = 6,211.76/x
  3. Step 3: Cross multiply
    11,247.68x = 15,521.88 × 6,211.76
  4. Step 4: Simplify right side
    11,247.68x = 96,418,193.31
  5. Step 5: Solve for x
    x = 96,418,193.31/11,247.68
  6. Step 6: Final answer
    x = 8,572.27

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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.