Home / 15,074.77-20,801.82-8,360.38

Finding the Fourth Proportional to 15,074.77, 20,801.82 and 8,360.38

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Solution

The fourth proportional to 15,074.77, 20,801.82 and 8,360.38 is: 11,536.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,074.77 : 20,801.82 = 8,360.38 : x
  2. Step 2: Convert to fraction form
    15,074.77/20,801.82 = 8,360.38/x
  3. Step 3: Cross multiply
    15,074.77x = 20,801.82 × 8,360.38
  4. Step 4: Simplify right side
    15,074.77x = 173,911,067.89
  5. Step 5: Solve for x
    x = 173,911,067.89/15,074.77
  6. Step 6: Final answer
    x = 11,536.57

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Half scale
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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.