Home / 7,414.42-11,121.63-1,868.19

Finding the Fourth Proportional to 7,414.42, 11,121.63 and 1,868.19

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Solution

The fourth proportional to 7,414.42, 11,121.63 and 1,868.19 is: 2,802.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,414.42 : 11,121.63 = 1,868.19 : x
  2. Step 2: Convert to fraction form
    7,414.42/11,121.63 = 1,868.19/x
  3. Step 3: Cross multiply
    7,414.42x = 11,121.63 × 1,868.19
  4. Step 4: Simplify right side
    7,414.42x = 20,777,317.95
  5. Step 5: Solve for x
    x = 20,777,317.95/7,414.42
  6. Step 6: Final answer
    x = 2,802.29

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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.