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Finding the Fourth Proportional to 18,374.96, 27,540.56 and 12,798.10

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Solution

The fourth proportional to 18,374.96, 27,540.56 and 12,798.10 is: 19,181.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,374.96 : 27,540.56 = 12,798.10 : x
  2. Step 2: Convert to fraction form
    18,374.96/27,540.56 = 12,798.10/x
  3. Step 3: Cross multiply
    18,374.96x = 27,540.56 × 12,798.10
  4. Step 4: Simplify right side
    18,374.96x = 352,466,840.94
  5. Step 5: Solve for x
    x = 352,466,840.94/18,374.96
  6. Step 6: Final answer
    x = 19,181.91

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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.