Home / 8,690.44-13,035.84-2,116.66

Finding the Fourth Proportional to 8,690.44, 13,035.84 and 2,116.66

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Solution

The fourth proportional to 8,690.44, 13,035.84 and 2,116.66 is: 3,175.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,690.44 : 13,035.84 = 2,116.66 : x
  2. Step 2: Convert to fraction form
    8,690.44/13,035.84 = 2,116.66/x
  3. Step 3: Cross multiply
    8,690.44x = 13,035.84 × 2,116.66
  4. Step 4: Simplify right side
    8,690.44x = 27,592,441.09
  5. Step 5: Solve for x
    x = 27,592,441.09/8,690.44
  6. Step 6: Final answer
    x = 3,175.03

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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.