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Finding the Fourth Proportional to 10,199, 15,295.69 and 2,801.70

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Solution

The fourth proportional to 10,199, 15,295.69 and 2,801.70 is: 4,201.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,199 : 15,295.69 = 2,801.70 : x
  2. Step 2: Convert to fraction form
    10,199/15,295.69 = 2,801.70/x
  3. Step 3: Cross multiply
    10,199x = 15,295.69 × 2,801.70
  4. Step 4: Simplify right side
    10,199x = 42,853,934.67
  5. Step 5: Solve for x
    x = 42,853,934.67/10,199
  6. Step 6: Final answer
    x = 4,201.78

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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.