Home / 13,601.41-18,778.50-11,089.44

Finding the Fourth Proportional to 13,601.41, 18,778.50 and 11,089.44

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Solution

The fourth proportional to 13,601.41, 18,778.50 and 11,089.44 is: 15,310.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,601.41 : 18,778.50 = 11,089.44 : x
  2. Step 2: Convert to fraction form
    13,601.41/18,778.50 = 11,089.44/x
  3. Step 3: Cross multiply
    13,601.41x = 18,778.50 × 11,089.44
  4. Step 4: Simplify right side
    13,601.41x = 208,243,049.04
  5. Step 5: Solve for x
    x = 208,243,049.04/13,601.41
  6. Step 6: Final answer
    x = 15,310.40

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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.