Home / 12,442.28-18,657.84-3,674.12

Finding the Fourth Proportional to 12,442.28, 18,657.84 and 3,674.12

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Solution

The fourth proportional to 12,442.28, 18,657.84 and 3,674.12 is: 5,509.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,442.28 : 18,657.84 = 3,674.12 : x
  2. Step 2: Convert to fraction form
    12,442.28/18,657.84 = 3,674.12/x
  3. Step 3: Cross multiply
    12,442.28x = 18,657.84 × 3,674.12
  4. Step 4: Simplify right side
    12,442.28x = 68,551,143.10
  5. Step 5: Solve for x
    x = 68,551,143.10/12,442.28
  6. Step 6: Final answer
    x = 5,509.53

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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.