Home / 10,830.62-16,236.44-5,205.48

Finding the Fourth Proportional to 10,830.62, 16,236.44 and 5,205.48

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Solution

The fourth proportional to 10,830.62, 16,236.44 and 5,205.48 is: 7,803.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,830.62 : 16,236.44 = 5,205.48 : x
  2. Step 2: Convert to fraction form
    10,830.62/16,236.44 = 5,205.48/x
  3. Step 3: Cross multiply
    10,830.62x = 16,236.44 × 5,205.48
  4. Step 4: Simplify right side
    10,830.62x = 84,518,396.30
  5. Step 5: Solve for x
    x = 84,518,396.30/10,830.62
  6. Step 6: Final answer
    x = 7,803.65

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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.