Home / 12,632.11-18,949.07-3,865.89

Finding the Fourth Proportional to 12,632.11, 18,949.07 and 3,865.89

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Solution

The fourth proportional to 12,632.11, 18,949.07 and 3,865.89 is: 5,799.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,632.11 : 18,949.07 = 3,865.89 : x
  2. Step 2: Convert to fraction form
    12,632.11/18,949.07 = 3,865.89/x
  3. Step 3: Cross multiply
    12,632.11x = 18,949.07 × 3,865.89
  4. Step 4: Simplify right side
    12,632.11x = 73,254,906.15
  5. Step 5: Solve for x
    x = 73,254,906.15/12,632.11
  6. Step 6: Final answer
    x = 5,799.10

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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.