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Finding the Fourth Proportional to 17,930.70, 26,892.45 and 8,570.70

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Solution

The fourth proportional to 17,930.70, 26,892.45 and 8,570.70 is: 12,854.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,930.70 : 26,892.45 = 8,570.70 : x
  2. Step 2: Convert to fraction form
    17,930.70/26,892.45 = 8,570.70/x
  3. Step 3: Cross multiply
    17,930.70x = 26,892.45 × 8,570.70
  4. Step 4: Simplify right side
    17,930.70x = 230,487,121.22
  5. Step 5: Solve for x
    x = 230,487,121.22/17,930.70
  6. Step 6: Final answer
    x = 12,854.33

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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.