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Finding the Fourth Proportional to 12,637.95, 18,919.49 and 9,365.73

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Solution

The fourth proportional to 12,637.95, 18,919.49 and 9,365.73 is: 14,020.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,637.95 : 18,919.49 = 9,365.73 : x
  2. Step 2: Convert to fraction form
    12,637.95/18,919.49 = 9,365.73/x
  3. Step 3: Cross multiply
    12,637.95x = 18,919.49 × 9,365.73
  4. Step 4: Simplify right side
    12,637.95x = 177,194,788.25
  5. Step 5: Solve for x
    x = 177,194,788.25/12,637.95
  6. Step 6: Final answer
    x = 14,020.85

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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.