Home / 18,245.72-25,179.15-10,287.95

Finding the Fourth Proportional to 18,245.72, 25,179.15 and 10,287.95

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Solution

The fourth proportional to 18,245.72, 25,179.15 and 10,287.95 is: 14,197.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,245.72 : 25,179.15 = 10,287.95 : x
  2. Step 2: Convert to fraction form
    18,245.72/25,179.15 = 10,287.95/x
  3. Step 3: Cross multiply
    18,245.72x = 25,179.15 × 10,287.95
  4. Step 4: Simplify right side
    18,245.72x = 259,041,748.93
  5. Step 5: Solve for x
    x = 259,041,748.93/18,245.72
  6. Step 6: Final answer
    x = 14,197.40

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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.