Home / 13,716.72-18,930.24-11,474.64

Finding the Fourth Proportional to 13,716.72, 18,930.24 and 11,474.64

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Solution

The fourth proportional to 13,716.72, 18,930.24 and 11,474.64 is: 15,835.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,716.72 : 18,930.24 = 11,474.64 : x
  2. Step 2: Convert to fraction form
    13,716.72/18,930.24 = 11,474.64/x
  3. Step 3: Cross multiply
    13,716.72x = 18,930.24 × 11,474.64
  4. Step 4: Simplify right side
    13,716.72x = 217,217,689.11
  5. Step 5: Solve for x
    x = 217,217,689.11/13,716.72
  6. Step 6: Final answer
    x = 15,835.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.