Home / 13,466.22-20,185.29-7,915.02

Finding the Fourth Proportional to 13,466.22, 20,185.29 and 7,915.02

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Solution

The fourth proportional to 13,466.22, 20,185.29 and 7,915.02 is: 11,864.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,466.22 : 20,185.29 = 7,915.02 : x
  2. Step 2: Convert to fraction form
    13,466.22/20,185.29 = 7,915.02/x
  3. Step 3: Cross multiply
    13,466.22x = 20,185.29 × 7,915.02
  4. Step 4: Simplify right side
    13,466.22x = 159,766,974.06
  5. Step 5: Solve for x
    x = 159,766,974.06/13,466.22
  6. Step 6: Final answer
    x = 11,864.28

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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.