Home / 11,983.69-17,981.11-4,585.71

Finding the Fourth Proportional to 11,983.69, 17,981.11 and 4,585.71

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Solution

The fourth proportional to 11,983.69, 17,981.11 and 4,585.71 is: 6,880.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,983.69 : 17,981.11 = 4,585.71 : x
  2. Step 2: Convert to fraction form
    11,983.69/17,981.11 = 4,585.71/x
  3. Step 3: Cross multiply
    11,983.69x = 17,981.11 × 4,585.71
  4. Step 4: Simplify right side
    11,983.69x = 82,456,155.94
  5. Step 5: Solve for x
    x = 82,456,155.94/11,983.69
  6. Step 6: Final answer
    x = 6,880.70

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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.