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Finding the Fourth Proportional to 17,630.70, 26,446.05 and 7,764.90

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Solution

The fourth proportional to 17,630.70, 26,446.05 and 7,764.90 is: 11,647.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,630.70 : 26,446.05 = 7,764.90 : x
  2. Step 2: Convert to fraction form
    17,630.70/26,446.05 = 7,764.90/x
  3. Step 3: Cross multiply
    17,630.70x = 26,446.05 × 7,764.90
  4. Step 4: Simplify right side
    17,630.70x = 205,350,933.65
  5. Step 5: Solve for x
    x = 205,350,933.65/17,630.70
  6. Step 6: Final answer
    x = 11,647.35

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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.