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Finding the Fourth Proportional to 19,951.80, 29,925.30 and 8,263.80

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Solution

The fourth proportional to 19,951.80, 29,925.30 and 8,263.80 is: 12,394.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,951.80 : 29,925.30 = 8,263.80 : x
  2. Step 2: Convert to fraction form
    19,951.80/29,925.30 = 8,263.80/x
  3. Step 3: Cross multiply
    19,951.80x = 29,925.30 × 8,263.80
  4. Step 4: Simplify right side
    19,951.80x = 247,296,694.14
  5. Step 5: Solve for x
    x = 247,296,694.14/19,951.80
  6. Step 6: Final answer
    x = 12,394.71

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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.