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Finding the Fourth Proportional to 11,876.43, 17,809.79 and 4,477.17

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Solution

The fourth proportional to 11,876.43, 17,809.79 and 4,477.17 is: 6,713.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,876.43 : 17,809.79 = 4,477.17 : x
  2. Step 2: Convert to fraction form
    11,876.43/17,809.79 = 4,477.17/x
  3. Step 3: Cross multiply
    11,876.43x = 17,809.79 × 4,477.17
  4. Step 4: Simplify right side
    11,876.43x = 79,737,435.11
  5. Step 5: Solve for x
    x = 79,737,435.11/11,876.43
  6. Step 6: Final answer
    x = 6,713.92

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1.5x scale

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.