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Finding the Fourth Proportional to 17,865.75, 26,791.94 and 14,347.11

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Solution

The fourth proportional to 17,865.75, 26,791.94 and 14,347.11 is: 21,515.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,865.75 : 26,791.94 = 14,347.11 : x
  2. Step 2: Convert to fraction form
    17,865.75/26,791.94 = 14,347.11/x
  3. Step 3: Cross multiply
    17,865.75x = 26,791.94 × 14,347.11
  4. Step 4: Simplify right side
    17,865.75x = 384,386,838.56
  5. Step 5: Solve for x
    x = 384,386,838.56/17,865.75
  6. Step 6: Final answer
    x = 21,515.29

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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.