Home / 7,458.90-11,188.25-1,912.23

Finding the Fourth Proportional to 7,458.90, 11,188.25 and 1,912.23

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Solution

The fourth proportional to 7,458.90, 11,188.25 and 1,912.23 is: 2,868.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,458.90 : 11,188.25 = 1,912.23 : x
  2. Step 2: Convert to fraction form
    7,458.90/11,188.25 = 1,912.23/x
  3. Step 3: Cross multiply
    7,458.90x = 11,188.25 × 1,912.23
  4. Step 4: Simplify right side
    7,458.90x = 21,394,497.74
  5. Step 5: Solve for x
    x = 21,394,497.74/7,458.90
  6. Step 6: Final answer
    x = 2,868.32

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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.