Home / 12,933.48-19,352.70-8,005.80

Finding the Fourth Proportional to 12,933.48, 19,352.70 and 8,005.80

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Solution

The fourth proportional to 12,933.48, 19,352.70 and 8,005.80 is: 11,979.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,933.48 : 19,352.70 = 8,005.80 : x
  2. Step 2: Convert to fraction form
    12,933.48/19,352.70 = 8,005.80/x
  3. Step 3: Cross multiply
    12,933.48x = 19,352.70 × 8,005.80
  4. Step 4: Simplify right side
    12,933.48x = 154,933,845.66
  5. Step 5: Solve for x
    x = 154,933,845.66/12,933.48
  6. Step 6: Final answer
    x = 11,979.29

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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.