Home / 16,032.36-22,121.46-9,318

Finding the Fourth Proportional to 16,032.36, 22,121.46 and 9,318

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Solution

The fourth proportional to 16,032.36, 22,121.46 and 9,318 is: 12,856.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,032.36 : 22,121.46 = 9,318 : x
  2. Step 2: Convert to fraction form
    16,032.36/22,121.46 = 9,318/x
  3. Step 3: Cross multiply
    16,032.36x = 22,121.46 × 9,318
  4. Step 4: Simplify right side
    16,032.36x = 206,127,764.28
  5. Step 5: Solve for x
    x = 206,127,764.28/16,032.36
  6. Step 6: Final answer
    x = 12,856.98

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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.