Home / 13,401.36-20,098.80-5,616

Finding the Fourth Proportional to 13,401.36, 20,098.80 and 5,616

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Solution

The fourth proportional to 13,401.36, 20,098.80 and 5,616 is: 8,422.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,401.36 : 20,098.80 = 5,616 : x
  2. Step 2: Convert to fraction form
    13,401.36/20,098.80 = 5,616/x
  3. Step 3: Cross multiply
    13,401.36x = 20,098.80 × 5,616
  4. Step 4: Simplify right side
    13,401.36x = 112,874,860.80
  5. Step 5: Solve for x
    x = 112,874,860.80/13,401.36
  6. Step 6: Final answer
    x = 8,422.64

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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.