Home / 16,669.75-23,004.86-9,115.64

Finding the Fourth Proportional to 16,669.75, 23,004.86 and 9,115.64

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Solution

The fourth proportional to 16,669.75, 23,004.86 and 9,115.64 is: 12,579.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,669.75 : 23,004.86 = 9,115.64 : x
  2. Step 2: Convert to fraction form
    16,669.75/23,004.86 = 9,115.64/x
  3. Step 3: Cross multiply
    16,669.75x = 23,004.86 × 9,115.64
  4. Step 4: Simplify right side
    16,669.75x = 209,703,998.95
  5. Step 5: Solve for x
    x = 209,703,998.95/16,669.75
  6. Step 6: Final answer
    x = 12,579.91

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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.