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Finding the Fourth Proportional to 15,916.27, 21,963.71 and 8,843.15

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Solution

The fourth proportional to 15,916.27, 21,963.71 and 8,843.15 is: 12,203.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,916.27 : 21,963.71 = 8,843.15 : x
  2. Step 2: Convert to fraction form
    15,916.27/21,963.71 = 8,843.15/x
  3. Step 3: Cross multiply
    15,916.27x = 21,963.71 × 8,843.15
  4. Step 4: Simplify right side
    15,916.27x = 194,228,337.87
  5. Step 5: Solve for x
    x = 194,228,337.87/15,916.27
  6. Step 6: Final answer
    x = 12,203.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.