Home / 12,550.74-18,827.55-4,227.90

Finding the Fourth Proportional to 12,550.74, 18,827.55 and 4,227.90

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Solution

The fourth proportional to 12,550.74, 18,827.55 and 4,227.90 is: 6,342.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,550.74 : 18,827.55 = 4,227.90 : x
  2. Step 2: Convert to fraction form
    12,550.74/18,827.55 = 4,227.90/x
  3. Step 3: Cross multiply
    12,550.74x = 18,827.55 × 4,227.90
  4. Step 4: Simplify right side
    12,550.74x = 79,600,998.65
  5. Step 5: Solve for x
    x = 79,600,998.65/12,550.74
  6. Step 6: Final answer
    x = 6,342.34

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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.