Home / 9,920.64-14,879.34-3,679.19

Finding the Fourth Proportional to 9,920.64, 14,879.34 and 3,679.19

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Solution

The fourth proportional to 9,920.64, 14,879.34 and 3,679.19 is: 5,518.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,920.64 : 14,879.34 = 3,679.19 : x
  2. Step 2: Convert to fraction form
    9,920.64/14,879.34 = 3,679.19/x
  3. Step 3: Cross multiply
    9,920.64x = 14,879.34 × 3,679.19
  4. Step 4: Simplify right side
    9,920.64x = 54,743,918.93
  5. Step 5: Solve for x
    x = 54,743,918.93/9,920.64
  6. Step 6: Final answer
    x = 5,518.18

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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.