Home / 12,161.73-16,785.03-8,803.32

Finding the Fourth Proportional to 12,161.73, 16,785.03 and 8,803.32

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Solution

The fourth proportional to 12,161.73, 16,785.03 and 8,803.32 is: 12,149.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,161.73 : 16,785.03 = 8,803.32 : x
  2. Step 2: Convert to fraction form
    12,161.73/16,785.03 = 8,803.32/x
  3. Step 3: Cross multiply
    12,161.73x = 16,785.03 × 8,803.32
  4. Step 4: Simplify right side
    12,161.73x = 147,763,990.30
  5. Step 5: Solve for x
    x = 147,763,990.30/12,161.73
  6. Step 6: Final answer
    x = 12,149.92

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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.