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Finding the Fourth Proportional to 16,659.87, 25,002.12 and 7,894.80

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Solution

The fourth proportional to 16,659.87, 25,002.12 and 7,894.80 is: 11,848.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,659.87 : 25,002.12 = 7,894.80 : x
  2. Step 2: Convert to fraction form
    16,659.87/25,002.12 = 7,894.80/x
  3. Step 3: Cross multiply
    16,659.87x = 25,002.12 × 7,894.80
  4. Step 4: Simplify right side
    16,659.87x = 197,386,736.98
  5. Step 5: Solve for x
    x = 197,386,736.98/16,659.87
  6. Step 6: Final answer
    x = 11,848.04

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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.