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Finding the Fourth Proportional to 18,383.57, 27,551.05 and 6,685.55

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Solution

The fourth proportional to 18,383.57, 27,551.05 and 6,685.55 is: 10,019.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,383.57 : 27,551.05 = 6,685.55 : x
  2. Step 2: Convert to fraction form
    18,383.57/27,551.05 = 6,685.55/x
  3. Step 3: Cross multiply
    18,383.57x = 27,551.05 × 6,685.55
  4. Step 4: Simplify right side
    18,383.57x = 184,193,767.86
  5. Step 5: Solve for x
    x = 184,193,767.86/18,383.57
  6. Step 6: Final answer
    x = 10,019.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.