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Finding the Fourth Proportional to 16,398.32, 22,629.64 and 9,324.75

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Solution

The fourth proportional to 16,398.32, 22,629.64 and 9,324.75 is: 12,868.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,398.32 : 22,629.64 = 9,324.75 : x
  2. Step 2: Convert to fraction form
    16,398.32/22,629.64 = 9,324.75/x
  3. Step 3: Cross multiply
    16,398.32x = 22,629.64 × 9,324.75
  4. Step 4: Simplify right side
    16,398.32x = 211,015,636.80
  5. Step 5: Solve for x
    x = 211,015,636.80/16,398.32
  6. Step 6: Final answer
    x = 12,868.12

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1.5x scale

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.