Home / 18,770.37-25,891.83-12,397.02

Finding the Fourth Proportional to 18,770.37, 25,891.83 and 12,397.02

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Solution

The fourth proportional to 18,770.37, 25,891.83 and 12,397.02 is: 17,100.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,770.37 : 25,891.83 = 12,397.02 : x
  2. Step 2: Convert to fraction form
    18,770.37/25,891.83 = 12,397.02/x
  3. Step 3: Cross multiply
    18,770.37x = 25,891.83 × 12,397.02
  4. Step 4: Simplify right side
    18,770.37x = 320,981,534.35
  5. Step 5: Solve for x
    x = 320,981,534.35/18,770.37
  6. Step 6: Final answer
    x = 17,100.44

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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.