Home / 15,104.73-20,843.38-8,389.79

Finding the Fourth Proportional to 15,104.73, 20,843.38 and 8,389.79

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Solution

The fourth proportional to 15,104.73, 20,843.38 and 8,389.79 is: 11,577.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,104.73 : 20,843.38 = 8,389.79 : x
  2. Step 2: Convert to fraction form
    15,104.73/20,843.38 = 8,389.79/x
  3. Step 3: Cross multiply
    15,104.73x = 20,843.38 × 8,389.79
  4. Step 4: Simplify right side
    15,104.73x = 174,871,581.09
  5. Step 5: Solve for x
    x = 174,871,581.09/15,104.73
  6. Step 6: Final answer
    x = 11,577.27

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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.