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Finding the Fourth Proportional to 8,615.56, 12,923.28 and 5,693.16

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Solution

The fourth proportional to 8,615.56, 12,923.28 and 5,693.16 is: 8,539.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,615.56 : 12,923.28 = 5,693.16 : x
  2. Step 2: Convert to fraction form
    8,615.56/12,923.28 = 5,693.16/x
  3. Step 3: Cross multiply
    8,615.56x = 12,923.28 × 5,693.16
  4. Step 4: Simplify right side
    8,615.56x = 73,574,300.76
  5. Step 5: Solve for x
    x = 73,574,300.76/8,615.56
  6. Step 6: Final answer
    x = 8,539.70

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