Home / 11,912.18-16,439.20-6,607.50

Finding the Fourth Proportional to 11,912.18, 16,439.20 and 6,607.50

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Solution

The fourth proportional to 11,912.18, 16,439.20 and 6,607.50 is: 9,118.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,912.18 : 16,439.20 = 6,607.50 : x
  2. Step 2: Convert to fraction form
    11,912.18/16,439.20 = 6,607.50/x
  3. Step 3: Cross multiply
    11,912.18x = 16,439.20 × 6,607.50
  4. Step 4: Simplify right side
    11,912.18x = 108,622,014
  5. Step 5: Solve for x
    x = 108,622,014/11,912.18
  6. Step 6: Final answer
    x = 9,118.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.