Home / 10,186.75-15,279.92-3,611.37

Finding the Fourth Proportional to 10,186.75, 15,279.92 and 3,611.37

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Solution

The fourth proportional to 10,186.75, 15,279.92 and 3,611.37 is: 5,416.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,186.75 : 15,279.92 = 3,611.37 : x
  2. Step 2: Convert to fraction form
    10,186.75/15,279.92 = 3,611.37/x
  3. Step 3: Cross multiply
    10,186.75x = 15,279.92 × 3,611.37
  4. Step 4: Simplify right side
    10,186.75x = 55,181,444.69
  5. Step 5: Solve for x
    x = 55,181,444.69/10,186.75
  6. Step 6: Final answer
    x = 5,416.98

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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.