Home / 9,353.18-12,906.23-5,161.16

Finding the Fourth Proportional to 9,353.18, 12,906.23 and 5,161.16

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Solution

The fourth proportional to 9,353.18, 12,906.23 and 5,161.16 is: 7,121.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,353.18 : 12,906.23 = 5,161.16 : x
  2. Step 2: Convert to fraction form
    9,353.18/12,906.23 = 5,161.16/x
  3. Step 3: Cross multiply
    9,353.18x = 12,906.23 × 5,161.16
  4. Step 4: Simplify right side
    9,353.18x = 66,611,027.69
  5. Step 5: Solve for x
    x = 66,611,027.69/9,353.18
  6. Step 6: Final answer
    x = 7,121.76

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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.