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Finding the Fourth Proportional to 12,750.60, 19,101 and 8,354.73

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Solution

The fourth proportional to 12,750.60, 19,101 and 8,354.73 is: 12,515.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,750.60 : 19,101 = 8,354.73 : x
  2. Step 2: Convert to fraction form
    12,750.60/19,101 = 8,354.73/x
  3. Step 3: Cross multiply
    12,750.60x = 19,101 × 8,354.73
  4. Step 4: Simplify right side
    12,750.60x = 159,583,697.73
  5. Step 5: Solve for x
    x = 159,583,697.73/12,750.60
  6. Step 6: Final answer
    x = 12,515.78

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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.