Home / 13,322.44-18,387.20-12,731.96

Finding the Fourth Proportional to 13,322.44, 18,387.20 and 12,731.96

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Solution

The fourth proportional to 13,322.44, 18,387.20 and 12,731.96 is: 17,572.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,322.44 : 18,387.20 = 12,731.96 : x
  2. Step 2: Convert to fraction form
    13,322.44/18,387.20 = 12,731.96/x
  3. Step 3: Cross multiply
    13,322.44x = 18,387.20 × 12,731.96
  4. Step 4: Simplify right side
    13,322.44x = 234,105,094.91
  5. Step 5: Solve for x
    x = 234,105,094.91/13,322.44
  6. Step 6: Final answer
    x = 17,572.24

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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.