Home / 12,424.18-18,629.85-3,657.96

Finding the Fourth Proportional to 12,424.18, 18,629.85 and 3,657.96

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Solution

The fourth proportional to 12,424.18, 18,629.85 and 3,657.96 is: 5,485.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,424.18 : 18,629.85 = 3,657.96 : x
  2. Step 2: Convert to fraction form
    12,424.18/18,629.85 = 3,657.96/x
  3. Step 3: Cross multiply
    12,424.18x = 18,629.85 × 3,657.96
  4. Step 4: Simplify right side
    12,424.18x = 68,147,246.11
  5. Step 5: Solve for x
    x = 68,147,246.11/12,424.18
  6. Step 6: Final answer
    x = 5,485.05

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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.