Home / 7,491.20-11,236.80-7,361.60

Finding the Fourth Proportional to 7,491.20, 11,236.80 and 7,361.60

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Solution

The fourth proportional to 7,491.20, 11,236.80 and 7,361.60 is: 11,042.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,491.20 : 11,236.80 = 7,361.60 : x
  2. Step 2: Convert to fraction form
    7,491.20/11,236.80 = 7,361.60/x
  3. Step 3: Cross multiply
    7,491.20x = 11,236.80 × 7,361.60
  4. Step 4: Simplify right side
    7,491.20x = 82,720,826.88
  5. Step 5: Solve for x
    x = 82,720,826.88/7,491.20
  6. Step 6: Final answer
    x = 11,042.40

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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.