Home / 11,912.58-17,867.51-3,148.19

Finding the Fourth Proportional to 11,912.58, 17,867.51 and 3,148.19

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Solution

The fourth proportional to 11,912.58, 17,867.51 and 3,148.19 is: 4,721.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,912.58 : 17,867.51 = 3,148.19 : x
  2. Step 2: Convert to fraction form
    11,912.58/17,867.51 = 3,148.19/x
  3. Step 3: Cross multiply
    11,912.58x = 17,867.51 × 3,148.19
  4. Step 4: Simplify right side
    11,912.58x = 56,250,211.23
  5. Step 5: Solve for x
    x = 56,250,211.23/11,912.58
  6. Step 6: Final answer
    x = 4,721.92

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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.