Home / 13,606.08-18,764.64-12,223.68

Finding the Fourth Proportional to 13,606.08, 18,764.64 and 12,223.68

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Solution

The fourth proportional to 13,606.08, 18,764.64 and 12,223.68 is: 16,858.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,606.08 : 18,764.64 = 12,223.68 : x
  2. Step 2: Convert to fraction form
    13,606.08/18,764.64 = 12,223.68/x
  3. Step 3: Cross multiply
    13,606.08x = 18,764.64 × 12,223.68
  4. Step 4: Simplify right side
    13,606.08x = 229,372,954.68
  5. Step 5: Solve for x
    x = 229,372,954.68/13,606.08
  6. Step 6: Final answer
    x = 16,858.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.