Home / 12,442.83-18,664.51-3,677.75

Finding the Fourth Proportional to 12,442.83, 18,664.51 and 3,677.75

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Solution

The fourth proportional to 12,442.83, 18,664.51 and 3,677.75 is: 5,516.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,442.83 : 18,664.51 = 3,677.75 : x
  2. Step 2: Convert to fraction form
    12,442.83/18,664.51 = 3,677.75/x
  3. Step 3: Cross multiply
    12,442.83x = 18,664.51 × 3,677.75
  4. Step 4: Simplify right side
    12,442.83x = 68,643,355.14
  5. Step 5: Solve for x
    x = 68,643,355.14/12,442.83
  6. Step 6: Final answer
    x = 5,516.70

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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.