Home / 12,201.57-18,302.36-10,553.22

Finding the Fourth Proportional to 12,201.57, 18,302.36 and 10,553.22

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Solution

The fourth proportional to 12,201.57, 18,302.36 and 10,553.22 is: 15,829.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,201.57 : 18,302.36 = 10,553.22 : x
  2. Step 2: Convert to fraction form
    12,201.57/18,302.36 = 10,553.22/x
  3. Step 3: Cross multiply
    12,201.57x = 18,302.36 × 10,553.22
  4. Step 4: Simplify right side
    12,201.57x = 193,148,824.59
  5. Step 5: Solve for x
    x = 193,148,824.59/12,201.57
  6. Step 6: Final answer
    x = 15,829.83

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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.