Home / 10,206.66-15,310.31-2,811.66

Finding the Fourth Proportional to 10,206.66, 15,310.31 and 2,811.66

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Solution

The fourth proportional to 10,206.66, 15,310.31 and 2,811.66 is: 4,217.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,206.66 : 15,310.31 = 2,811.66 : x
  2. Step 2: Convert to fraction form
    10,206.66/15,310.31 = 2,811.66/x
  3. Step 3: Cross multiply
    10,206.66x = 15,310.31 × 2,811.66
  4. Step 4: Simplify right side
    10,206.66x = 43,047,372.16
  5. Step 5: Solve for x
    x = 43,047,372.16/10,206.66
  6. Step 6: Final answer
    x = 4,217.58

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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.