Home / 10,312.31-15,468.67-3,386.81

Finding the Fourth Proportional to 10,312.31, 15,468.67 and 3,386.81

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Solution

The fourth proportional to 10,312.31, 15,468.67 and 3,386.81 is: 5,080.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,312.31 : 15,468.67 = 3,386.81 : x
  2. Step 2: Convert to fraction form
    10,312.31/15,468.67 = 3,386.81/x
  3. Step 3: Cross multiply
    10,312.31x = 15,468.67 × 3,386.81
  4. Step 4: Simplify right side
    10,312.31x = 52,389,489.15
  5. Step 5: Solve for x
    x = 52,389,489.15/10,312.31
  6. Step 6: Final answer
    x = 5,080.29

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