Home / 13,550.24-20,289-13,127.60

Finding the Fourth Proportional to 13,550.24, 20,289 and 13,127.60

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Solution

The fourth proportional to 13,550.24, 20,289 and 13,127.60 is: 19,656.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,550.24 : 20,289 = 13,127.60 : x
  2. Step 2: Convert to fraction form
    13,550.24/20,289 = 13,127.60/x
  3. Step 3: Cross multiply
    13,550.24x = 20,289 × 13,127.60
  4. Step 4: Simplify right side
    13,550.24x = 266,345,876.40
  5. Step 5: Solve for x
    x = 266,345,876.40/13,550.24
  6. Step 6: Final answer
    x = 19,656.17

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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.