Home / 12,632.85-18,949.31-3,867.72

Finding the Fourth Proportional to 12,632.85, 18,949.31 and 3,867.72

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Solution

The fourth proportional to 12,632.85, 18,949.31 and 3,867.72 is: 5,801.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,632.85 : 18,949.31 = 3,867.72 : x
  2. Step 2: Convert to fraction form
    12,632.85/18,949.31 = 3,867.72/x
  3. Step 3: Cross multiply
    12,632.85x = 18,949.31 × 3,867.72
  4. Step 4: Simplify right side
    12,632.85x = 73,290,682.32
  5. Step 5: Solve for x
    x = 73,290,682.32/12,632.85
  6. Step 6: Final answer
    x = 5,801.60

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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.