Home / 19,144.32-28,679.04-12,550.38

Finding the Fourth Proportional to 19,144.32, 28,679.04 and 12,550.38

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Solution

The fourth proportional to 19,144.32, 28,679.04 and 12,550.38 is: 18,801.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,144.32 : 28,679.04 = 12,550.38 : x
  2. Step 2: Convert to fraction form
    19,144.32/28,679.04 = 12,550.38/x
  3. Step 3: Cross multiply
    19,144.32x = 28,679.04 × 12,550.38
  4. Step 4: Simplify right side
    19,144.32x = 359,932,850.04
  5. Step 5: Solve for x
    x = 359,932,850.04/19,144.32
  6. Step 6: Final answer
    x = 18,801.03

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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.