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Finding the Fourth Proportional to 18,266.54, 27,408.48 and 12,652.84

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Solution

The fourth proportional to 18,266.54, 27,408.48 and 12,652.84 is: 18,985.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,266.54 : 27,408.48 = 12,652.84 : x
  2. Step 2: Convert to fraction form
    18,266.54/27,408.48 = 12,652.84/x
  3. Step 3: Cross multiply
    18,266.54x = 27,408.48 × 12,652.84
  4. Step 4: Simplify right side
    18,266.54x = 346,795,112.08
  5. Step 5: Solve for x
    x = 346,795,112.08/18,266.54
  6. Step 6: Final answer
    x = 18,985.27

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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.