Home / 7,407.28-11,112.78-2,213.14

Finding the Fourth Proportional to 7,407.28, 11,112.78 and 2,213.14

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Solution

The fourth proportional to 7,407.28, 11,112.78 and 2,213.14 is: 3,320.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,407.28 : 11,112.78 = 2,213.14 : x
  2. Step 2: Convert to fraction form
    7,407.28/11,112.78 = 2,213.14/x
  3. Step 3: Cross multiply
    7,407.28x = 11,112.78 × 2,213.14
  4. Step 4: Simplify right side
    7,407.28x = 24,594,137.93
  5. Step 5: Solve for x
    x = 24,594,137.93/7,407.28
  6. Step 6: Final answer
    x = 3,320.27

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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.