Home / 12,531.80-18,800.22-3,766.34

Finding the Fourth Proportional to 12,531.80, 18,800.22 and 3,766.34

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Solution

The fourth proportional to 12,531.80, 18,800.22 and 3,766.34 is: 5,650.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,531.80 : 18,800.22 = 3,766.34 : x
  2. Step 2: Convert to fraction form
    12,531.80/18,800.22 = 3,766.34/x
  3. Step 3: Cross multiply
    12,531.80x = 18,800.22 × 3,766.34
  4. Step 4: Simplify right side
    12,531.80x = 70,808,020.59
  5. Step 5: Solve for x
    x = 70,808,020.59/12,531.80
  6. Step 6: Final answer
    x = 5,650.27

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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.