Home / 18,770.04-25,893.54-12,399.12

Finding the Fourth Proportional to 18,770.04, 25,893.54 and 12,399.12

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Solution

The fourth proportional to 18,770.04, 25,893.54 and 12,399.12 is: 17,104.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,770.04 : 25,893.54 = 12,399.12 : x
  2. Step 2: Convert to fraction form
    18,770.04/25,893.54 = 12,399.12/x
  3. Step 3: Cross multiply
    18,770.04x = 25,893.54 × 12,399.12
  4. Step 4: Simplify right side
    18,770.04x = 321,057,109.68
  5. Step 5: Solve for x
    x = 321,057,109.68/18,770.04
  6. Step 6: Final answer
    x = 17,104.76

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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.