Home / 13,510.36-20,199-11,453.40

Finding the Fourth Proportional to 13,510.36, 20,199 and 11,453.40

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Solution

The fourth proportional to 13,510.36, 20,199 and 11,453.40 is: 17,123.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,510.36 : 20,199 = 11,453.40 : x
  2. Step 2: Convert to fraction form
    13,510.36/20,199 = 11,453.40/x
  3. Step 3: Cross multiply
    13,510.36x = 20,199 × 11,453.40
  4. Step 4: Simplify right side
    13,510.36x = 231,347,226.60
  5. Step 5: Solve for x
    x = 231,347,226.60/13,510.36
  6. Step 6: Final answer
    x = 17,123.69

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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.