Home / 12,550.11-18,820.36-4,227.89

Finding the Fourth Proportional to 12,550.11, 18,820.36 and 4,227.89

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Solution

The fourth proportional to 12,550.11, 18,820.36 and 4,227.89 is: 6,340.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,550.11 : 18,820.36 = 4,227.89 : x
  2. Step 2: Convert to fraction form
    12,550.11/18,820.36 = 4,227.89/x
  3. Step 3: Cross multiply
    12,550.11x = 18,820.36 × 4,227.89
  4. Step 4: Simplify right side
    12,550.11x = 79,570,323.02
  5. Step 5: Solve for x
    x = 79,570,323.02/12,550.11
  6. Step 6: Final answer
    x = 6,340.21

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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.