Home / 12,396.11-18,606.32-9,099.86

Finding the Fourth Proportional to 12,396.11, 18,606.32 and 9,099.86

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Solution

The fourth proportional to 12,396.11, 18,606.32 and 9,099.86 is: 13,658.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,396.11 : 18,606.32 = 9,099.86 : x
  2. Step 2: Convert to fraction form
    12,396.11/18,606.32 = 9,099.86/x
  3. Step 3: Cross multiply
    12,396.11x = 18,606.32 × 9,099.86
  4. Step 4: Simplify right side
    12,396.11x = 169,314,907.12
  5. Step 5: Solve for x
    x = 169,314,907.12/12,396.11
  6. Step 6: Final answer
    x = 13,658.71

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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.