Home / 13,187.73-18,180.12-9,404.33

Finding the Fourth Proportional to 13,187.73, 18,180.12 and 9,404.33

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Solution

The fourth proportional to 13,187.73, 18,180.12 and 9,404.33 is: 12,964.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187.73 : 18,180.12 = 9,404.33 : x
  2. Step 2: Convert to fraction form
    13,187.73/18,180.12 = 9,404.33/x
  3. Step 3: Cross multiply
    13,187.73x = 18,180.12 × 9,404.33
  4. Step 4: Simplify right side
    13,187.73x = 170,971,757.02
  5. Step 5: Solve for x
    x = 170,971,757.02/13,187.73
  6. Step 6: Final answer
    x = 12,964.46

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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.