Home / 10,757.16-16,138.62-4,912.20

Finding the Fourth Proportional to 10,757.16, 16,138.62 and 4,912.20

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Solution

The fourth proportional to 10,757.16, 16,138.62 and 4,912.20 is: 7,369.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,757.16 : 16,138.62 = 4,912.20 : x
  2. Step 2: Convert to fraction form
    10,757.16/16,138.62 = 4,912.20/x
  3. Step 3: Cross multiply
    10,757.16x = 16,138.62 × 4,912.20
  4. Step 4: Simplify right side
    10,757.16x = 79,276,129.16
  5. Step 5: Solve for x
    x = 79,276,129.16/10,757.16
  6. Step 6: Final answer
    x = 7,369.62

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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.