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Finding the Fourth Proportional to 17,879.58, 26,799.93 and 7,479.18

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Solution

The fourth proportional to 17,879.58, 26,799.93 and 7,479.18 is: 11,210.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,879.58 : 26,799.93 = 7,479.18 : x
  2. Step 2: Convert to fraction form
    17,879.58/26,799.93 = 7,479.18/x
  3. Step 3: Cross multiply
    17,879.58x = 26,799.93 × 7,479.18
  4. Step 4: Simplify right side
    17,879.58x = 200,441,500.46
  5. Step 5: Solve for x
    x = 200,441,500.46/17,879.58
  6. Step 6: Final answer
    x = 11,210.64

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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.