Home / 8,389.35-12,583.82-3,459.29

Finding the Fourth Proportional to 8,389.35, 12,583.82 and 3,459.29

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Solution

The fourth proportional to 8,389.35, 12,583.82 and 3,459.29 is: 5,188.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,389.35 : 12,583.82 = 3,459.29 : x
  2. Step 2: Convert to fraction form
    8,389.35/12,583.82 = 3,459.29/x
  3. Step 3: Cross multiply
    8,389.35x = 12,583.82 × 3,459.29
  4. Step 4: Simplify right side
    8,389.35x = 43,531,028.42
  5. Step 5: Solve for x
    x = 43,531,028.42/8,389.35
  6. Step 6: Final answer
    x = 5,188.84

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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.