Home / 12,112.71-18,169.97-3,347.55

Finding the Fourth Proportional to 12,112.71, 18,169.97 and 3,347.55

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Solution

The fourth proportional to 12,112.71, 18,169.97 and 3,347.55 is: 5,021.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,112.71 : 18,169.97 = 3,347.55 : x
  2. Step 2: Convert to fraction form
    12,112.71/18,169.97 = 3,347.55/x
  3. Step 3: Cross multiply
    12,112.71x = 18,169.97 × 3,347.55
  4. Step 4: Simplify right side
    12,112.71x = 60,824,866.34
  5. Step 5: Solve for x
    x = 60,824,866.34/12,112.71
  6. Step 6: Final answer
    x = 5,021.57

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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.