Home / 18,770.54-25,894.22-12,399.62

Finding the Fourth Proportional to 18,770.54, 25,894.22 and 12,399.62

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Solution

The fourth proportional to 18,770.54, 25,894.22 and 12,399.62 is: 17,105.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,770.54 : 25,894.22 = 12,399.62 : x
  2. Step 2: Convert to fraction form
    18,770.54/25,894.22 = 12,399.62/x
  3. Step 3: Cross multiply
    18,770.54x = 25,894.22 × 12,399.62
  4. Step 4: Simplify right side
    18,770.54x = 321,078,488.20
  5. Step 5: Solve for x
    x = 321,078,488.20/18,770.54
  6. Step 6: Final answer
    x = 17,105.45

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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.