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Finding the Fourth Proportional to 17,988.96, 26,974.80 and 10,195.68

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Solution

The fourth proportional to 17,988.96, 26,974.80 and 10,195.68 is: 15,288.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,988.96 : 26,974.80 = 10,195.68 : x
  2. Step 2: Convert to fraction form
    17,988.96/26,974.80 = 10,195.68/x
  3. Step 3: Cross multiply
    17,988.96x = 26,974.80 × 10,195.68
  4. Step 4: Simplify right side
    17,988.96x = 275,026,428.86
  5. Step 5: Solve for x
    x = 275,026,428.86/17,988.96
  6. Step 6: Final answer
    x = 15,288.62

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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.