Home / 15,053.80-20,776.42-9,086.33

Finding the Fourth Proportional to 15,053.80, 20,776.42 and 9,086.33

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Solution

The fourth proportional to 15,053.80, 20,776.42 and 9,086.33 is: 12,540.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,053.80 : 20,776.42 = 9,086.33 : x
  2. Step 2: Convert to fraction form
    15,053.80/20,776.42 = 9,086.33/x
  3. Step 3: Cross multiply
    15,053.80x = 20,776.42 × 9,086.33
  4. Step 4: Simplify right side
    15,053.80x = 188,781,380.33
  5. Step 5: Solve for x
    x = 188,781,380.33/15,053.80
  6. Step 6: Final answer
    x = 12,540.45

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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.