Home / 12,587.03-18,879.32-3,822.02

Finding the Fourth Proportional to 12,587.03, 18,879.32 and 3,822.02

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Solution

The fourth proportional to 12,587.03, 18,879.32 and 3,822.02 is: 5,732.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,587.03 : 18,879.32 = 3,822.02 : x
  2. Step 2: Convert to fraction form
    12,587.03/18,879.32 = 3,822.02/x
  3. Step 3: Cross multiply
    12,587.03x = 18,879.32 × 3,822.02
  4. Step 4: Simplify right side
    12,587.03x = 72,157,138.63
  5. Step 5: Solve for x
    x = 72,157,138.63/12,587.03
  6. Step 6: Final answer
    x = 5,732.66

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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.