Home / 11,946.90-17,915.49-5,371.32

Finding the Fourth Proportional to 11,946.90, 17,915.49 and 5,371.32

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Solution

The fourth proportional to 11,946.90, 17,915.49 and 5,371.32 is: 8,054.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,946.90 : 17,915.49 = 5,371.32 : x
  2. Step 2: Convert to fraction form
    11,946.90/17,915.49 = 5,371.32/x
  3. Step 3: Cross multiply
    11,946.90x = 17,915.49 × 5,371.32
  4. Step 4: Simplify right side
    11,946.90x = 96,229,829.75
  5. Step 5: Solve for x
    x = 96,229,829.75/11,946.90
  6. Step 6: Final answer
    x = 8,054.79

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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.