Home / 11,928.81-16,461.86-6,623.72

Finding the Fourth Proportional to 11,928.81, 16,461.86 and 6,623.72

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Solution

The fourth proportional to 11,928.81, 16,461.86 and 6,623.72 is: 9,140.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,928.81 : 16,461.86 = 6,623.72 : x
  2. Step 2: Convert to fraction form
    11,928.81/16,461.86 = 6,623.72/x
  3. Step 3: Cross multiply
    11,928.81x = 16,461.86 × 6,623.72
  4. Step 4: Simplify right side
    11,928.81x = 109,038,635.89
  5. Step 5: Solve for x
    x = 109,038,635.89/11,928.81
  6. Step 6: Final answer
    x = 9,140.78

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