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Finding the Fourth Proportional to 18,602.97, 25,664.85 and 10,640.94

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Solution

The fourth proportional to 18,602.97, 25,664.85 and 10,640.94 is: 14,680.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,602.97 : 25,664.85 = 10,640.94 : x
  2. Step 2: Convert to fraction form
    18,602.97/25,664.85 = 10,640.94/x
  3. Step 3: Cross multiply
    18,602.97x = 25,664.85 × 10,640.94
  4. Step 4: Simplify right side
    18,602.97x = 273,098,128.96
  5. Step 5: Solve for x
    x = 273,098,128.96/18,602.97
  6. Step 6: Final answer
    x = 14,680.35

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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.