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Finding the Fourth Proportional to 17,819.79, 26,729.07 and 8,464.29

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Solution

The fourth proportional to 17,819.79, 26,729.07 and 8,464.29 is: 12,696.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,819.79 : 26,729.07 = 8,464.29 : x
  2. Step 2: Convert to fraction form
    17,819.79/26,729.07 = 8,464.29/x
  3. Step 3: Cross multiply
    17,819.79x = 26,729.07 × 8,464.29
  4. Step 4: Simplify right side
    17,819.79x = 226,242,599.91
  5. Step 5: Solve for x
    x = 226,242,599.91/17,819.79
  6. Step 6: Final answer
    x = 12,696.14

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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.