Home / 16,998.15-23,453.84-9,921.38

Finding the Fourth Proportional to 16,998.15, 23,453.84 and 9,921.38

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Solution

The fourth proportional to 16,998.15, 23,453.84 and 9,921.38 is: 13,689.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,998.15 : 23,453.84 = 9,921.38 : x
  2. Step 2: Convert to fraction form
    16,998.15/23,453.84 = 9,921.38/x
  3. Step 3: Cross multiply
    16,998.15x = 23,453.84 × 9,921.38
  4. Step 4: Simplify right side
    16,998.15x = 232,694,409.49
  5. Step 5: Solve for x
    x = 232,694,409.49/16,998.15
  6. Step 6: Final answer
    x = 13,689.40

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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.