Home / 12,149.91-18,212.67-4,246.29

Finding the Fourth Proportional to 12,149.91, 18,212.67 and 4,246.29

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Solution

The fourth proportional to 12,149.91, 18,212.67 and 4,246.29 is: 6,365.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,149.91 : 18,212.67 = 4,246.29 : x
  2. Step 2: Convert to fraction form
    12,149.91/18,212.67 = 4,246.29/x
  3. Step 3: Cross multiply
    12,149.91x = 18,212.67 × 4,246.29
  4. Step 4: Simplify right side
    12,149.91x = 77,336,278.49
  5. Step 5: Solve for x
    x = 77,336,278.49/12,149.91
  6. Step 6: Final answer
    x = 6,365.17

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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.