Home / 12,083.52-18,114.36-4,290.52

Finding the Fourth Proportional to 12,083.52, 18,114.36 and 4,290.52

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Solution

The fourth proportional to 12,083.52, 18,114.36 and 4,290.52 is: 6,431.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,083.52 : 18,114.36 = 4,290.52 : x
  2. Step 2: Convert to fraction form
    12,083.52/18,114.36 = 4,290.52/x
  3. Step 3: Cross multiply
    12,083.52x = 18,114.36 × 4,290.52
  4. Step 4: Simplify right side
    12,083.52x = 77,720,023.87
  5. Step 5: Solve for x
    x = 77,720,023.87/12,083.52
  6. Step 6: Final answer
    x = 6,431.90

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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.