Home / 11,123.92-15,347.52-6,645.52

Finding the Fourth Proportional to 11,123.92, 15,347.52 and 6,645.52

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Solution

The fourth proportional to 11,123.92, 15,347.52 and 6,645.52 is: 9,168.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,123.92 : 15,347.52 = 6,645.52 : x
  2. Step 2: Convert to fraction form
    11,123.92/15,347.52 = 6,645.52/x
  3. Step 3: Cross multiply
    11,123.92x = 15,347.52 × 6,645.52
  4. Step 4: Simplify right side
    11,123.92x = 101,992,251.11
  5. Step 5: Solve for x
    x = 101,992,251.11/11,123.92
  6. Step 6: Final answer
    x = 9,168.73

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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.