Home / 10,788.50-16,186.62-4,219.40

Finding the Fourth Proportional to 10,788.50, 16,186.62 and 4,219.40

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Solution

The fourth proportional to 10,788.50, 16,186.62 and 4,219.40 is: 6,330.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,788.50 : 16,186.62 = 4,219.40 : x
  2. Step 2: Convert to fraction form
    10,788.50/16,186.62 = 4,219.40/x
  3. Step 3: Cross multiply
    10,788.50x = 16,186.62 × 4,219.40
  4. Step 4: Simplify right side
    10,788.50x = 68,297,824.43
  5. Step 5: Solve for x
    x = 68,297,824.43/10,788.50
  6. Step 6: Final answer
    x = 6,330.61

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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.