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Finding the Fourth Proportional to 17,938.10, 26,906.06 and 6,691.27

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Solution

The fourth proportional to 17,938.10, 26,906.06 and 6,691.27 is: 10,036.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,938.10 : 26,906.06 = 6,691.27 : x
  2. Step 2: Convert to fraction form
    17,938.10/26,906.06 = 6,691.27/x
  3. Step 3: Cross multiply
    17,938.10x = 26,906.06 × 6,691.27
  4. Step 4: Simplify right side
    17,938.10x = 180,035,712.10
  5. Step 5: Solve for x
    x = 180,035,712.10/17,938.10
  6. Step 6: Final answer
    x = 10,036.50

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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.