Home / 9,324.45-13,981.86-2,749.78

Finding the Fourth Proportional to 9,324.45, 13,981.86 and 2,749.78

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Solution

The fourth proportional to 9,324.45, 13,981.86 and 2,749.78 is: 4,123.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,324.45 : 13,981.86 = 2,749.78 : x
  2. Step 2: Convert to fraction form
    9,324.45/13,981.86 = 2,749.78/x
  3. Step 3: Cross multiply
    9,324.45x = 13,981.86 × 2,749.78
  4. Step 4: Simplify right side
    9,324.45x = 38,446,955.33
  5. Step 5: Solve for x
    x = 38,446,955.33/9,324.45
  6. Step 6: Final answer
    x = 4,123.24

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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.