Home / 16,436.64-22,691.76-10,857.36

Finding the Fourth Proportional to 16,436.64, 22,691.76 and 10,857.36

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Solution

The fourth proportional to 16,436.64, 22,691.76 and 10,857.36 is: 14,989.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,436.64 : 22,691.76 = 10,857.36 : x
  2. Step 2: Convert to fraction form
    16,436.64/22,691.76 = 10,857.36/x
  3. Step 3: Cross multiply
    16,436.64x = 22,691.76 × 10,857.36
  4. Step 4: Simplify right side
    16,436.64x = 246,372,607.35
  5. Step 5: Solve for x
    x = 246,372,607.35/16,436.64
  6. Step 6: Final answer
    x = 14,989.23

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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.