Home / 12,098.20-18,138.72-4,696.42

Finding the Fourth Proportional to 12,098.20, 18,138.72 and 4,696.42

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Solution

The fourth proportional to 12,098.20, 18,138.72 and 4,696.42 is: 7,041.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,098.20 : 18,138.72 = 4,696.42 : x
  2. Step 2: Convert to fraction form
    12,098.20/18,138.72 = 4,696.42/x
  3. Step 3: Cross multiply
    12,098.20x = 18,138.72 × 4,696.42
  4. Step 4: Simplify right side
    12,098.20x = 85,187,047.38
  5. Step 5: Solve for x
    x = 85,187,047.38/12,098.20
  6. Step 6: Final answer
    x = 7,041.30

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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.