Home / 10,958.13-15,090.37-9,521.82

Finding the Fourth Proportional to 10,958.13, 15,090.37 and 9,521.82

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Solution

The fourth proportional to 10,958.13, 15,090.37 and 9,521.82 is: 13,112.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,958.13 : 15,090.37 = 9,521.82 : x
  2. Step 2: Convert to fraction form
    10,958.13/15,090.37 = 9,521.82/x
  3. Step 3: Cross multiply
    10,958.13x = 15,090.37 × 9,521.82
  4. Step 4: Simplify right side
    10,958.13x = 143,687,763.07
  5. Step 5: Solve for x
    x = 143,687,763.07/10,958.13
  6. Step 6: Final answer
    x = 13,112.43

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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.