Home / 10,371.80-15,525.30-8,168.60

Finding the Fourth Proportional to 10,371.80, 15,525.30 and 8,168.60

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Solution

The fourth proportional to 10,371.80, 15,525.30 and 8,168.60 is: 12,227.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,371.80 : 15,525.30 = 8,168.60 : x
  2. Step 2: Convert to fraction form
    10,371.80/15,525.30 = 8,168.60/x
  3. Step 3: Cross multiply
    10,371.80x = 15,525.30 × 8,168.60
  4. Step 4: Simplify right side
    10,371.80x = 126,819,965.58
  5. Step 5: Solve for x
    x = 126,819,965.58/10,371.80
  6. Step 6: Final answer
    x = 12,227.38

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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.