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Finding the Fourth Proportional to 12,461.74, 18,690.80 and 4,027.12

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Solution

The fourth proportional to 12,461.74, 18,690.80 and 4,027.12 is: 6,040.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,461.74 : 18,690.80 = 4,027.12 : x
  2. Step 2: Convert to fraction form
    12,461.74/18,690.80 = 4,027.12/x
  3. Step 3: Cross multiply
    12,461.74x = 18,690.80 × 4,027.12
  4. Step 4: Simplify right side
    12,461.74x = 75,270,094.50
  5. Step 5: Solve for x
    x = 75,270,094.50/12,461.74
  6. Step 6: Final answer
    x = 6,040.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.