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Finding the Fourth Proportional to 18,030.55, 27,027.60 and 8,176.90

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Solution

The fourth proportional to 18,030.55, 27,027.60 and 8,176.90 is: 12,257.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,030.55 : 27,027.60 = 8,176.90 : x
  2. Step 2: Convert to fraction form
    18,030.55/27,027.60 = 8,176.90/x
  3. Step 3: Cross multiply
    18,030.55x = 27,027.60 × 8,176.90
  4. Step 4: Simplify right side
    18,030.55x = 221,001,982.44
  5. Step 5: Solve for x
    x = 221,001,982.44/18,030.55
  6. Step 6: Final answer
    x = 12,257.08

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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.