Home / 8,910.67-13,361.80-5,214.02

Finding the Fourth Proportional to 8,910.67, 13,361.80 and 5,214.02

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Solution

The fourth proportional to 8,910.67, 13,361.80 and 5,214.02 is: 7,818.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,910.67 : 13,361.80 = 5,214.02 : x
  2. Step 2: Convert to fraction form
    8,910.67/13,361.80 = 5,214.02/x
  3. Step 3: Cross multiply
    8,910.67x = 13,361.80 × 5,214.02
  4. Step 4: Simplify right side
    8,910.67x = 69,668,692.44
  5. Step 5: Solve for x
    x = 69,668,692.44/8,910.67
  6. Step 6: Final answer
    x = 7,818.57

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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.