Home / 10,231.81-15,347.26-3,211.66

Finding the Fourth Proportional to 10,231.81, 15,347.26 and 3,211.66

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Solution

The fourth proportional to 10,231.81, 15,347.26 and 3,211.66 is: 4,817.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,231.81 : 15,347.26 = 3,211.66 : x
  2. Step 2: Convert to fraction form
    10,231.81/15,347.26 = 3,211.66/x
  3. Step 3: Cross multiply
    10,231.81x = 15,347.26 × 3,211.66
  4. Step 4: Simplify right side
    10,231.81x = 49,290,181.05
  5. Step 5: Solve for x
    x = 49,290,181.05/10,231.81
  6. Step 6: Final answer
    x = 4,817.35

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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.