Home / 13,746-18,969.94-8,080.66

Finding the Fourth Proportional to 13,746, 18,969.94 and 8,080.66

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Solution

The fourth proportional to 13,746, 18,969.94 and 8,080.66 is: 11,151.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,746 : 18,969.94 = 8,080.66 : x
  2. Step 2: Convert to fraction form
    13,746/18,969.94 = 8,080.66/x
  3. Step 3: Cross multiply
    13,746x = 18,969.94 × 8,080.66
  4. Step 4: Simplify right side
    13,746x = 153,289,635.36
  5. Step 5: Solve for x
    x = 153,289,635.36/13,746
  6. Step 6: Final answer
    x = 11,151.58

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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.