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Finding the Fourth Proportional to 15,218.09, 22,819.94 and 8,894.78

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Solution

The fourth proportional to 15,218.09, 22,819.94 and 8,894.78 is: 13,337.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,218.09 : 22,819.94 = 8,894.78 : x
  2. Step 2: Convert to fraction form
    15,218.09/22,819.94 = 8,894.78/x
  3. Step 3: Cross multiply
    15,218.09x = 22,819.94 × 8,894.78
  4. Step 4: Simplify right side
    15,218.09x = 202,978,356.30
  5. Step 5: Solve for x
    x = 202,978,356.30/15,218.09
  6. Step 6: Final answer
    x = 13,337.97

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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.