Home / 7,480.12-11,189.34-6,148.88

Finding the Fourth Proportional to 7,480.12, 11,189.34 and 6,148.88

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Solution

The fourth proportional to 7,480.12, 11,189.34 and 6,148.88 is: 9,197.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,480.12 : 11,189.34 = 6,148.88 : x
  2. Step 2: Convert to fraction form
    7,480.12/11,189.34 = 6,148.88/x
  3. Step 3: Cross multiply
    7,480.12x = 11,189.34 × 6,148.88
  4. Step 4: Simplify right side
    7,480.12x = 68,801,908.94
  5. Step 5: Solve for x
    x = 68,801,908.94/7,480.12
  6. Step 6: Final answer
    x = 9,197.97

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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.