Home / 12,442.41-18,666.77-3,677.31

Finding the Fourth Proportional to 12,442.41, 18,666.77 and 3,677.31

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Solution

The fourth proportional to 12,442.41, 18,666.77 and 3,677.31 is: 5,516.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,442.41 : 18,666.77 = 3,677.31 : x
  2. Step 2: Convert to fraction form
    12,442.41/18,666.77 = 3,677.31/x
  3. Step 3: Cross multiply
    12,442.41x = 18,666.77 × 3,677.31
  4. Step 4: Simplify right side
    12,442.41x = 68,643,481.60
  5. Step 5: Solve for x
    x = 68,643,481.60/12,442.41
  6. Step 6: Final answer
    x = 5,516.90

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1.5x scale

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.