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Finding the Fourth Proportional to 12,497.38, 18,749.15 and 8,806.82

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Solution

The fourth proportional to 12,497.38, 18,749.15 and 8,806.82 is: 13,212.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,497.38 : 18,749.15 = 8,806.82 : x
  2. Step 2: Convert to fraction form
    12,497.38/18,749.15 = 8,806.82/x
  3. Step 3: Cross multiply
    12,497.38x = 18,749.15 × 8,806.82
  4. Step 4: Simplify right side
    12,497.38x = 165,120,389.20
  5. Step 5: Solve for x
    x = 165,120,389.20/12,497.38
  6. Step 6: Final answer
    x = 13,212.40

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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.