Home / 10,891.24-15,025.56-7,113.12

Finding the Fourth Proportional to 10,891.24, 15,025.56 and 7,113.12

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Solution

The fourth proportional to 10,891.24, 15,025.56 and 7,113.12 is: 9,813.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,891.24 : 15,025.56 = 7,113.12 : x
  2. Step 2: Convert to fraction form
    10,891.24/15,025.56 = 7,113.12/x
  3. Step 3: Cross multiply
    10,891.24x = 15,025.56 × 7,113.12
  4. Step 4: Simplify right side
    10,891.24x = 106,878,611.35
  5. Step 5: Solve for x
    x = 106,878,611.35/10,891.24
  6. Step 6: Final answer
    x = 9,813.26

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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.