Home / 10,968.36-15,131.70-6,721.08

Finding the Fourth Proportional to 10,968.36, 15,131.70 and 6,721.08

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Solution

The fourth proportional to 10,968.36, 15,131.70 and 6,721.08 is: 9,272.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,968.36 : 15,131.70 = 6,721.08 : x
  2. Step 2: Convert to fraction form
    10,968.36/15,131.70 = 6,721.08/x
  3. Step 3: Cross multiply
    10,968.36x = 15,131.70 × 6,721.08
  4. Step 4: Simplify right side
    10,968.36x = 101,701,366.24
  5. Step 5: Solve for x
    x = 101,701,366.24/10,968.36
  6. Step 6: Final answer
    x = 9,272.25

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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.