Home / 12,558.56-18,844.32-5,631.68

Finding the Fourth Proportional to 12,558.56, 18,844.32 and 5,631.68

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Solution

The fourth proportional to 12,558.56, 18,844.32 and 5,631.68 is: 8,450.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,558.56 : 18,844.32 = 5,631.68 : x
  2. Step 2: Convert to fraction form
    12,558.56/18,844.32 = 5,631.68/x
  3. Step 3: Cross multiply
    12,558.56x = 18,844.32 × 5,631.68
  4. Step 4: Simplify right side
    12,558.56x = 106,125,180.06
  5. Step 5: Solve for x
    x = 106,125,180.06/12,558.56
  6. Step 6: Final answer
    x = 8,450.43

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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.