Home / 18,384.24-27,551.52-13,178.64

Finding the Fourth Proportional to 18,384.24, 27,551.52 and 13,178.64

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Solution

The fourth proportional to 18,384.24, 27,551.52 and 13,178.64 is: 19,750.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,384.24 : 27,551.52 = 13,178.64 : x
  2. Step 2: Convert to fraction form
    18,384.24/27,551.52 = 13,178.64/x
  3. Step 3: Cross multiply
    18,384.24x = 27,551.52 × 13,178.64
  4. Step 4: Simplify right side
    18,384.24x = 363,091,563.53
  5. Step 5: Solve for x
    x = 363,091,563.53/18,384.24
  6. Step 6: Final answer
    x = 19,750.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.