Home / 12,553.36-18,833.12-8,862.80

Finding the Fourth Proportional to 12,553.36, 18,833.12 and 8,862.80

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Solution

The fourth proportional to 12,553.36, 18,833.12 and 8,862.80 is: 13,296.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,553.36 : 18,833.12 = 8,862.80 : x
  2. Step 2: Convert to fraction form
    12,553.36/18,833.12 = 8,862.80/x
  3. Step 3: Cross multiply
    12,553.36x = 18,833.12 × 8,862.80
  4. Step 4: Simplify right side
    12,553.36x = 166,914,175.94
  5. Step 5: Solve for x
    x = 166,914,175.94/12,553.36
  6. Step 6: Final answer
    x = 13,296.37

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1.5x scale

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.