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Finding the Fourth Proportional to 18,498.60, 27,757.98 and 6,810.12

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Solution

The fourth proportional to 18,498.60, 27,757.98 and 6,810.12 is: 10,218.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,498.60 : 27,757.98 = 6,810.12 : x
  2. Step 2: Convert to fraction form
    18,498.60/27,757.98 = 6,810.12/x
  3. Step 3: Cross multiply
    18,498.60x = 27,757.98 × 6,810.12
  4. Step 4: Simplify right side
    18,498.60x = 189,035,174.76
  5. Step 5: Solve for x
    x = 189,035,174.76/18,498.60
  6. Step 6: Final answer
    x = 10,218.89

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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.