Home / 11,227.14-15,484.32-9,879.84

Finding the Fourth Proportional to 11,227.14, 15,484.32 and 9,879.84

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Solution

The fourth proportional to 11,227.14, 15,484.32 and 9,879.84 is: 13,626.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,227.14 : 15,484.32 = 9,879.84 : x
  2. Step 2: Convert to fraction form
    11,227.14/15,484.32 = 9,879.84/x
  3. Step 3: Cross multiply
    11,227.14x = 15,484.32 × 9,879.84
  4. Step 4: Simplify right side
    11,227.14x = 152,982,604.11
  5. Step 5: Solve for x
    x = 152,982,604.11/11,227.14
  6. Step 6: Final answer
    x = 13,626.14

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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.