Home / 18,729.57-25,834.56-12,004.55

Finding the Fourth Proportional to 18,729.57, 25,834.56 and 12,004.55

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Solution

The fourth proportional to 18,729.57, 25,834.56 and 12,004.55 is: 16,558.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,729.57 : 25,834.56 = 12,004.55 : x
  2. Step 2: Convert to fraction form
    18,729.57/25,834.56 = 12,004.55/x
  3. Step 3: Cross multiply
    18,729.57x = 25,834.56 × 12,004.55
  4. Step 4: Simplify right side
    18,729.57x = 310,132,138.08
  5. Step 5: Solve for x
    x = 310,132,138.08/18,729.57
  6. Step 6: Final answer
    x = 16,558.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.