Home / 11,805.39-17,688.84-6,879.18

Finding the Fourth Proportional to 11,805.39, 17,688.84 and 6,879.18

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Solution

The fourth proportional to 11,805.39, 17,688.84 and 6,879.18 is: 10,307.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,805.39 : 17,688.84 = 6,879.18 : x
  2. Step 2: Convert to fraction form
    11,805.39/17,688.84 = 6,879.18/x
  3. Step 3: Cross multiply
    11,805.39x = 17,688.84 × 6,879.18
  4. Step 4: Simplify right side
    11,805.39x = 121,684,714.35
  5. Step 5: Solve for x
    x = 121,684,714.35/11,805.39
  6. Step 6: Final answer
    x = 10,307.56

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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.