Home / 13,456.16-20,150-11,259.36

Finding the Fourth Proportional to 13,456.16, 20,150 and 11,259.36

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Solution

The fourth proportional to 13,456.16, 20,150 and 11,259.36 is: 16,860.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,456.16 : 20,150 = 11,259.36 : x
  2. Step 2: Convert to fraction form
    13,456.16/20,150 = 11,259.36/x
  3. Step 3: Cross multiply
    13,456.16x = 20,150 × 11,259.36
  4. Step 4: Simplify right side
    13,456.16x = 226,876,104
  5. Step 5: Solve for x
    x = 226,876,104/13,456.16
  6. Step 6: Final answer
    x = 16,860.39

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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.