Home / 12,324.66-18,477.76-3,999.70

Finding the Fourth Proportional to 12,324.66, 18,477.76 and 3,999.70

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Solution

The fourth proportional to 12,324.66, 18,477.76 and 3,999.70 is: 5,996.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,324.66 : 18,477.76 = 3,999.70 : x
  2. Step 2: Convert to fraction form
    12,324.66/18,477.76 = 3,999.70/x
  3. Step 3: Cross multiply
    12,324.66x = 18,477.76 × 3,999.70
  4. Step 4: Simplify right side
    12,324.66x = 73,905,563.61
  5. Step 5: Solve for x
    x = 73,905,563.61/12,324.66
  6. Step 6: Final answer
    x = 5,996.56

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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.