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Finding the Fourth Proportional to 12,604.78, 18,874.14 and 8,886.88

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Solution

The fourth proportional to 12,604.78, 18,874.14 and 8,886.88 is: 13,307.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,604.78 : 18,874.14 = 8,886.88 : x
  2. Step 2: Convert to fraction form
    12,604.78/18,874.14 = 8,886.88/x
  3. Step 3: Cross multiply
    12,604.78x = 18,874.14 × 8,886.88
  4. Step 4: Simplify right side
    12,604.78x = 167,732,217.28
  5. Step 5: Solve for x
    x = 167,732,217.28/12,604.78
  6. Step 6: Final answer
    x = 13,307.03

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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.