Home / 15,019.97-20,727.66-8,214.03

Finding the Fourth Proportional to 15,019.97, 20,727.66 and 8,214.03

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Solution

The fourth proportional to 15,019.97, 20,727.66 and 8,214.03 is: 11,335.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,019.97 : 20,727.66 = 8,214.03 : x
  2. Step 2: Convert to fraction form
    15,019.97/20,727.66 = 8,214.03/x
  3. Step 3: Cross multiply
    15,019.97x = 20,727.66 × 8,214.03
  4. Step 4: Simplify right side
    15,019.97x = 170,257,621.07
  5. Step 5: Solve for x
    x = 170,257,621.07/15,019.97
  6. Step 6: Final answer
    x = 11,335.42

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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.