Home / 15,067.40-20,790.38-8,692.56

Finding the Fourth Proportional to 15,067.40, 20,790.38 and 8,692.56

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Solution

The fourth proportional to 15,067.40, 20,790.38 and 8,692.56 is: 11,994.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,067.40 : 20,790.38 = 8,692.56 : x
  2. Step 2: Convert to fraction form
    15,067.40/20,790.38 = 8,692.56/x
  3. Step 3: Cross multiply
    15,067.40x = 20,790.38 × 8,692.56
  4. Step 4: Simplify right side
    15,067.40x = 180,721,625.57
  5. Step 5: Solve for x
    x = 180,721,625.57/15,067.40
  6. Step 6: Final answer
    x = 11,994.21

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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.