Home / 16,939.08-23,370.12-9,867.78

Finding the Fourth Proportional to 16,939.08, 23,370.12 and 9,867.78

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Solution

The fourth proportional to 16,939.08, 23,370.12 and 9,867.78 is: 13,614.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,939.08 : 23,370.12 = 9,867.78 : x
  2. Step 2: Convert to fraction form
    16,939.08/23,370.12 = 9,867.78/x
  3. Step 3: Cross multiply
    16,939.08x = 23,370.12 × 9,867.78
  4. Step 4: Simplify right side
    16,939.08x = 230,611,202.73
  5. Step 5: Solve for x
    x = 230,611,202.73/16,939.08
  6. Step 6: Final answer
    x = 13,614.15

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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.