Home / 8,878.26-13,314.90-2,638.02

Finding the Fourth Proportional to 8,878.26, 13,314.90 and 2,638.02

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Solution

The fourth proportional to 8,878.26, 13,314.90 and 2,638.02 is: 3,956.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,878.26 : 13,314.90 = 2,638.02 : x
  2. Step 2: Convert to fraction form
    8,878.26/13,314.90 = 2,638.02/x
  3. Step 3: Cross multiply
    8,878.26x = 13,314.90 × 2,638.02
  4. Step 4: Simplify right side
    8,878.26x = 35,124,972.50
  5. Step 5: Solve for x
    x = 35,124,972.50/8,878.26
  6. Step 6: Final answer
    x = 3,956.29

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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.