Home / 13,893.80-19,172.21-8,227.52

Finding the Fourth Proportional to 13,893.80, 19,172.21 and 8,227.52

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Solution

The fourth proportional to 13,893.80, 19,172.21 and 8,227.52 is: 11,353.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,893.80 : 19,172.21 = 8,227.52 : x
  2. Step 2: Convert to fraction form
    13,893.80/19,172.21 = 8,227.52/x
  3. Step 3: Cross multiply
    13,893.80x = 19,172.21 × 8,227.52
  4. Step 4: Simplify right side
    13,893.80x = 157,739,604.22
  5. Step 5: Solve for x
    x = 157,739,604.22/13,893.80
  6. Step 6: Final answer
    x = 11,353.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.