Home / 13,456.36-18,569.78-7,791.41

Finding the Fourth Proportional to 13,456.36, 18,569.78 and 7,791.41

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Solution

The fourth proportional to 13,456.36, 18,569.78 and 7,791.41 is: 10,752.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,456.36 : 18,569.78 = 7,791.41 : x
  2. Step 2: Convert to fraction form
    13,456.36/18,569.78 = 7,791.41/x
  3. Step 3: Cross multiply
    13,456.36x = 18,569.78 × 7,791.41
  4. Step 4: Simplify right side
    13,456.36x = 144,684,676.74
  5. Step 5: Solve for x
    x = 144,684,676.74/13,456.36
  6. Step 6: Final answer
    x = 10,752.14

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