Home / 9,115.46-12,581.43-5,580.62

Finding the Fourth Proportional to 9,115.46, 12,581.43 and 5,580.62

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Solution

The fourth proportional to 9,115.46, 12,581.43 and 5,580.62 is: 7,702.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,115.46 : 12,581.43 = 5,580.62 : x
  2. Step 2: Convert to fraction form
    9,115.46/12,581.43 = 5,580.62/x
  3. Step 3: Cross multiply
    9,115.46x = 12,581.43 × 5,580.62
  4. Step 4: Simplify right side
    9,115.46x = 70,212,179.89
  5. Step 5: Solve for x
    x = 70,212,179.89/9,115.46
  6. Step 6: Final answer
    x = 7,702.54

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