Home / 7,469.88-11,205.86-2,538.20

Finding the Fourth Proportional to 7,469.88, 11,205.86 and 2,538.20

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Solution

The fourth proportional to 7,469.88, 11,205.86 and 2,538.20 is: 3,807.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,469.88 : 11,205.86 = 2,538.20 : x
  2. Step 2: Convert to fraction form
    7,469.88/11,205.86 = 2,538.20/x
  3. Step 3: Cross multiply
    7,469.88x = 11,205.86 × 2,538.20
  4. Step 4: Simplify right side
    7,469.88x = 28,442,645.13
  5. Step 5: Solve for x
    x = 28,442,645.13/7,469.88
  6. Step 6: Final answer
    x = 3,807.64

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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.