Home / 13,022.54-17,971.44-7,716.50

Finding the Fourth Proportional to 13,022.54, 17,971.44 and 7,716.50

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Solution

The fourth proportional to 13,022.54, 17,971.44 and 7,716.50 is: 10,648.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,022.54 : 17,971.44 = 7,716.50 : x
  2. Step 2: Convert to fraction form
    13,022.54/17,971.44 = 7,716.50/x
  3. Step 3: Cross multiply
    13,022.54x = 17,971.44 × 7,716.50
  4. Step 4: Simplify right side
    13,022.54x = 138,676,616.76
  5. Step 5: Solve for x
    x = 138,676,616.76/13,022.54
  6. Step 6: Final answer
    x = 10,648.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.