Home / 7,482.27-11,221.13-3,319.68

Finding the Fourth Proportional to 7,482.27, 11,221.13 and 3,319.68

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Solution

The fourth proportional to 7,482.27, 11,221.13 and 3,319.68 is: 4,978.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,482.27 : 11,221.13 = 3,319.68 : x
  2. Step 2: Convert to fraction form
    7,482.27/11,221.13 = 3,319.68/x
  3. Step 3: Cross multiply
    7,482.27x = 11,221.13 × 3,319.68
  4. Step 4: Simplify right side
    7,482.27x = 37,250,611.22
  5. Step 5: Solve for x
    x = 37,250,611.22/7,482.27
  6. Step 6: Final answer
    x = 4,978.51

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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.