Home / 13,701.01-18,890.18-11,180.56

Finding the Fourth Proportional to 13,701.01, 18,890.18 and 11,180.56

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Solution

The fourth proportional to 13,701.01, 18,890.18 and 11,180.56 is: 15,415.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,701.01 : 18,890.18 = 11,180.56 : x
  2. Step 2: Convert to fraction form
    13,701.01/18,890.18 = 11,180.56/x
  3. Step 3: Cross multiply
    13,701.01x = 18,890.18 × 11,180.56
  4. Step 4: Simplify right side
    13,701.01x = 211,202,640.55
  5. Step 5: Solve for x
    x = 211,202,640.55/13,701.01
  6. Step 6: Final answer
    x = 15,415.12

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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.