Home / 8,878.22-13,319.99-2,638.44

Finding the Fourth Proportional to 8,878.22, 13,319.99 and 2,638.44

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Solution

The fourth proportional to 8,878.22, 13,319.99 and 2,638.44 is: 3,958.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,878.22 : 13,319.99 = 2,638.44 : x
  2. Step 2: Convert to fraction form
    8,878.22/13,319.99 = 2,638.44/x
  3. Step 3: Cross multiply
    8,878.22x = 13,319.99 × 2,638.44
  4. Step 4: Simplify right side
    8,878.22x = 35,143,994.42
  5. Step 5: Solve for x
    x = 35,143,994.42/8,878.22
  6. Step 6: Final answer
    x = 3,958.45

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1.5x scale

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.