Home / 18,398.20-25,394.88-12,025.72

Finding the Fourth Proportional to 18,398.20, 25,394.88 and 12,025.72

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Solution

The fourth proportional to 18,398.20, 25,394.88 and 12,025.72 is: 16,599.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,398.20 : 25,394.88 = 12,025.72 : x
  2. Step 2: Convert to fraction form
    18,398.20/25,394.88 = 12,025.72/x
  3. Step 3: Cross multiply
    18,398.20x = 25,394.88 × 12,025.72
  4. Step 4: Simplify right side
    18,398.20x = 305,391,716.31
  5. Step 5: Solve for x
    x = 305,391,716.31/18,398.20
  6. Step 6: Final answer
    x = 16,599.00

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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.