Home / 18,768.54-25,891.46-12,397.62

Finding the Fourth Proportional to 18,768.54, 25,891.46 and 12,397.62

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Solution

The fourth proportional to 18,768.54, 25,891.46 and 12,397.62 is: 17,102.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,768.54 : 25,891.46 = 12,397.62 : x
  2. Step 2: Convert to fraction form
    18,768.54/25,891.46 = 12,397.62/x
  3. Step 3: Cross multiply
    18,768.54x = 25,891.46 × 12,397.62
  4. Step 4: Simplify right side
    18,768.54x = 320,992,482.33
  5. Step 5: Solve for x
    x = 320,992,482.33/18,768.54
  6. Step 6: Final answer
    x = 17,102.69

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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.