Home / 12,347.72-18,516.92-4,025.78

Finding the Fourth Proportional to 12,347.72, 18,516.92 and 4,025.78

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Solution

The fourth proportional to 12,347.72, 18,516.92 and 4,025.78 is: 6,037.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,347.72 : 18,516.92 = 4,025.78 : x
  2. Step 2: Convert to fraction form
    12,347.72/18,516.92 = 4,025.78/x
  3. Step 3: Cross multiply
    12,347.72x = 18,516.92 × 4,025.78
  4. Step 4: Simplify right side
    12,347.72x = 74,544,933.48
  5. Step 5: Solve for x
    x = 74,544,933.48/12,347.72
  6. Step 6: Final answer
    x = 6,037.14

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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.