Home / 12,125.89-18,196.11-5,200.39

Finding the Fourth Proportional to 12,125.89, 18,196.11 and 5,200.39

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Solution

The fourth proportional to 12,125.89, 18,196.11 and 5,200.39 is: 7,803.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,125.89 : 18,196.11 = 5,200.39 : x
  2. Step 2: Convert to fraction form
    12,125.89/18,196.11 = 5,200.39/x
  3. Step 3: Cross multiply
    12,125.89x = 18,196.11 × 5,200.39
  4. Step 4: Simplify right side
    12,125.89x = 94,626,868.48
  5. Step 5: Solve for x
    x = 94,626,868.48/12,125.89
  6. Step 6: Final answer
    x = 7,803.71

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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.