Home / 14,078.64-21,109.98-4,713.60

Finding the Fourth Proportional to 14,078.64, 21,109.98 and 4,713.60

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Solution

The fourth proportional to 14,078.64, 21,109.98 and 4,713.60 is: 7,067.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,078.64 : 21,109.98 = 4,713.60 : x
  2. Step 2: Convert to fraction form
    14,078.64/21,109.98 = 4,713.60/x
  3. Step 3: Cross multiply
    14,078.64x = 21,109.98 × 4,713.60
  4. Step 4: Simplify right side
    14,078.64x = 99,504,001.73
  5. Step 5: Solve for x
    x = 99,504,001.73/14,078.64
  6. Step 6: Final answer
    x = 7,067.73

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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.