Home / 10,981.71-16,472.58-2,661.69

Finding the Fourth Proportional to 10,981.71, 16,472.58 and 2,661.69

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Solution

The fourth proportional to 10,981.71, 16,472.58 and 2,661.69 is: 3,992.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,981.71 : 16,472.58 = 2,661.69 : x
  2. Step 2: Convert to fraction form
    10,981.71/16,472.58 = 2,661.69/x
  3. Step 3: Cross multiply
    10,981.71x = 16,472.58 × 2,661.69
  4. Step 4: Simplify right side
    10,981.71x = 43,844,901.46
  5. Step 5: Solve for x
    x = 43,844,901.46/10,981.71
  6. Step 6: Final answer
    x = 3,992.54

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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.