Home / 12,367.20-18,550.68-3,133.20

Finding the Fourth Proportional to 12,367.20, 18,550.68 and 3,133.20

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Solution

The fourth proportional to 12,367.20, 18,550.68 and 3,133.20 is: 4,699.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,367.20 : 18,550.68 = 3,133.20 : x
  2. Step 2: Convert to fraction form
    12,367.20/18,550.68 = 3,133.20/x
  3. Step 3: Cross multiply
    12,367.20x = 18,550.68 × 3,133.20
  4. Step 4: Simplify right side
    12,367.20x = 58,122,990.58
  5. Step 5: Solve for x
    x = 58,122,990.58/12,367.20
  6. Step 6: Final answer
    x = 4,699.77

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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.