Home / 16,989.44-23,443.70-9,919.96

Finding the Fourth Proportional to 16,989.44, 23,443.70 and 9,919.96

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Solution

The fourth proportional to 16,989.44, 23,443.70 and 9,919.96 is: 13,688.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,989.44 : 23,443.70 = 9,919.96 : x
  2. Step 2: Convert to fraction form
    16,989.44/23,443.70 = 9,919.96/x
  3. Step 3: Cross multiply
    16,989.44x = 23,443.70 × 9,919.96
  4. Step 4: Simplify right side
    16,989.44x = 232,560,458.04
  5. Step 5: Solve for x
    x = 232,560,458.04/16,989.44
  6. Step 6: Final answer
    x = 13,688.53

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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.