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Finding the Fourth Proportional to 18,060.98, 27,091.47 and 8,820.50

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Solution

The fourth proportional to 18,060.98, 27,091.47 and 8,820.50 is: 13,230.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,060.98 : 27,091.47 = 8,820.50 : x
  2. Step 2: Convert to fraction form
    18,060.98/27,091.47 = 8,820.50/x
  3. Step 3: Cross multiply
    18,060.98x = 27,091.47 × 8,820.50
  4. Step 4: Simplify right side
    18,060.98x = 238,960,311.14
  5. Step 5: Solve for x
    x = 238,960,311.14/18,060.98
  6. Step 6: Final answer
    x = 13,230.75

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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.