Home / 18,169.20-25,074.72-13,685.04

Finding the Fourth Proportional to 18,169.20, 25,074.72 and 13,685.04

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Solution

The fourth proportional to 18,169.20, 25,074.72 and 13,685.04 is: 18,886.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,169.20 : 25,074.72 = 13,685.04 : x
  2. Step 2: Convert to fraction form
    18,169.20/25,074.72 = 13,685.04/x
  3. Step 3: Cross multiply
    18,169.20x = 25,074.72 × 13,685.04
  4. Step 4: Simplify right side
    18,169.20x = 343,148,546.19
  5. Step 5: Solve for x
    x = 343,148,546.19/18,169.20
  6. Step 6: Final answer
    x = 18,886.28

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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.