Home / 13,416.84-20,123.64-5,621.40

Finding the Fourth Proportional to 13,416.84, 20,123.64 and 5,621.40

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Solution

The fourth proportional to 13,416.84, 20,123.64 and 5,621.40 is: 8,431.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,416.84 : 20,123.64 = 5,621.40 : x
  2. Step 2: Convert to fraction form
    13,416.84/20,123.64 = 5,621.40/x
  3. Step 3: Cross multiply
    13,416.84x = 20,123.64 × 5,621.40
  4. Step 4: Simplify right side
    13,416.84x = 113,123,029.90
  5. Step 5: Solve for x
    x = 113,123,029.90/13,416.84
  6. Step 6: Final answer
    x = 8,431.42

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