Home / 16,661.36-22,991.64-9,209.52

Finding the Fourth Proportional to 16,661.36, 22,991.64 and 9,209.52

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Solution

The fourth proportional to 16,661.36, 22,991.64 and 9,209.52 is: 12,708.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,661.36 : 22,991.64 = 9,209.52 : x
  2. Step 2: Convert to fraction form
    16,661.36/22,991.64 = 9,209.52/x
  3. Step 3: Cross multiply
    16,661.36x = 22,991.64 × 9,209.52
  4. Step 4: Simplify right side
    16,661.36x = 211,741,968.41
  5. Step 5: Solve for x
    x = 211,741,968.41/16,661.36
  6. Step 6: Final answer
    x = 12,708.56

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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.