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Finding the Fourth Proportional to 19,103.70, 28,650 and 8,010.08

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Solution

The fourth proportional to 19,103.70, 28,650 and 8,010.08 is: 12,012.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,103.70 : 28,650 = 8,010.08 : x
  2. Step 2: Convert to fraction form
    19,103.70/28,650 = 8,010.08/x
  3. Step 3: Cross multiply
    19,103.70x = 28,650 × 8,010.08
  4. Step 4: Simplify right side
    19,103.70x = 229,488,792
  5. Step 5: Solve for x
    x = 229,488,792/19,103.70
  6. Step 6: Final answer
    x = 12,012.79

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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.