Home / 13,213.36-19,851-12,466.12

Finding the Fourth Proportional to 13,213.36, 19,851 and 12,466.12

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Solution

The fourth proportional to 13,213.36, 19,851 and 12,466.12 is: 18,728.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,213.36 : 19,851 = 12,466.12 : x
  2. Step 2: Convert to fraction form
    13,213.36/19,851 = 12,466.12/x
  3. Step 3: Cross multiply
    13,213.36x = 19,851 × 12,466.12
  4. Step 4: Simplify right side
    13,213.36x = 247,464,948.12
  5. Step 5: Solve for x
    x = 247,464,948.12/13,213.36
  6. Step 6: Final answer
    x = 18,728.39

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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.