Home / 14,116.12-21,179.76-5,353.36

Finding the Fourth Proportional to 14,116.12, 21,179.76 and 5,353.36

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Solution

The fourth proportional to 14,116.12, 21,179.76 and 5,353.36 is: 8,032.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,116.12 : 21,179.76 = 5,353.36 : x
  2. Step 2: Convert to fraction form
    14,116.12/21,179.76 = 5,353.36/x
  3. Step 3: Cross multiply
    14,116.12x = 21,179.76 × 5,353.36
  4. Step 4: Simplify right side
    14,116.12x = 113,382,879.99
  5. Step 5: Solve for x
    x = 113,382,879.99/14,116.12
  6. Step 6: Final answer
    x = 8,032.16

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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.