Home / 13,091.21-18,060.73-9,696.50

Finding the Fourth Proportional to 13,091.21, 18,060.73 and 9,696.50

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Solution

The fourth proportional to 13,091.21, 18,060.73 and 9,696.50 is: 13,377.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,091.21 : 18,060.73 = 9,696.50 : x
  2. Step 2: Convert to fraction form
    13,091.21/18,060.73 = 9,696.50/x
  3. Step 3: Cross multiply
    13,091.21x = 18,060.73 × 9,696.50
  4. Step 4: Simplify right side
    13,091.21x = 175,125,868.45
  5. Step 5: Solve for x
    x = 175,125,868.45/13,091.21
  6. Step 6: Final answer
    x = 13,377.36

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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.