Home / 8,919.33-13,380.51-3,074.57

Finding the Fourth Proportional to 8,919.33, 13,380.51 and 3,074.57

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Solution

The fourth proportional to 8,919.33, 13,380.51 and 3,074.57 is: 4,612.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,919.33 : 13,380.51 = 3,074.57 : x
  2. Step 2: Convert to fraction form
    8,919.33/13,380.51 = 3,074.57/x
  3. Step 3: Cross multiply
    8,919.33x = 13,380.51 × 3,074.57
  4. Step 4: Simplify right side
    8,919.33x = 41,139,314.63
  5. Step 5: Solve for x
    x = 41,139,314.63/8,919.33
  6. Step 6: Final answer
    x = 4,612.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.