Home / 11,520.54-17,280.80-3,623.02

Finding the Fourth Proportional to 11,520.54, 17,280.80 and 3,623.02

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Solution

The fourth proportional to 11,520.54, 17,280.80 and 3,623.02 is: 5,434.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,520.54 : 17,280.80 = 3,623.02 : x
  2. Step 2: Convert to fraction form
    11,520.54/17,280.80 = 3,623.02/x
  3. Step 3: Cross multiply
    11,520.54x = 17,280.80 × 3,623.02
  4. Step 4: Simplify right side
    11,520.54x = 62,608,684.02
  5. Step 5: Solve for x
    x = 62,608,684.02/11,520.54
  6. Step 6: Final answer
    x = 5,434.53

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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.