Home / 11,318.31-16,971.30-3,922.16

Finding the Fourth Proportional to 11,318.31, 16,971.30 and 3,922.16

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Solution

The fourth proportional to 11,318.31, 16,971.30 and 3,922.16 is: 5,881.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,318.31 : 16,971.30 = 3,922.16 : x
  2. Step 2: Convert to fraction form
    11,318.31/16,971.30 = 3,922.16/x
  3. Step 3: Cross multiply
    11,318.31x = 16,971.30 × 3,922.16
  4. Step 4: Simplify right side
    11,318.31x = 66,564,069.15
  5. Step 5: Solve for x
    x = 66,564,069.15/11,318.31
  6. Step 6: Final answer
    x = 5,881.10

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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.