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Finding the Fourth Proportional to 12,395.67, 18,599.88 and 8,238.54

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Solution

The fourth proportional to 12,395.67, 18,599.88 and 8,238.54 is: 12,362.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,395.67 : 18,599.88 = 8,238.54 : x
  2. Step 2: Convert to fraction form
    12,395.67/18,599.88 = 8,238.54/x
  3. Step 3: Cross multiply
    12,395.67x = 18,599.88 × 8,238.54
  4. Step 4: Simplify right side
    12,395.67x = 153,235,855.38
  5. Step 5: Solve for x
    x = 153,235,855.38/12,395.67
  6. Step 6: Final answer
    x = 12,362.05

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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.