Home / 16,994.16-23,451.78-9,921.66

Finding the Fourth Proportional to 16,994.16, 23,451.78 and 9,921.66

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Solution

The fourth proportional to 16,994.16, 23,451.78 and 9,921.66 is: 13,691.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,994.16 : 23,451.78 = 9,921.66 : x
  2. Step 2: Convert to fraction form
    16,994.16/23,451.78 = 9,921.66/x
  3. Step 3: Cross multiply
    16,994.16x = 23,451.78 × 9,921.66
  4. Step 4: Simplify right side
    16,994.16x = 232,680,587.55
  5. Step 5: Solve for x
    x = 232,680,587.55/16,994.16
  6. Step 6: Final answer
    x = 13,691.80

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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.