Home / 12,577.82-18,865.64-4,257.66

Finding the Fourth Proportional to 12,577.82, 18,865.64 and 4,257.66

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Solution

The fourth proportional to 12,577.82, 18,865.64 and 4,257.66 is: 6,386.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,577.82 : 18,865.64 = 4,257.66 : x
  2. Step 2: Convert to fraction form
    12,577.82/18,865.64 = 4,257.66/x
  3. Step 3: Cross multiply
    12,577.82x = 18,865.64 × 4,257.66
  4. Step 4: Simplify right side
    12,577.82x = 80,323,480.80
  5. Step 5: Solve for x
    x = 80,323,480.80/12,577.82
  6. Step 6: Final answer
    x = 6,386.12

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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.