Home / 9,375.28-12,937.80-5,183.60

Finding the Fourth Proportional to 9,375.28, 12,937.80 and 5,183.60

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Solution

The fourth proportional to 9,375.28, 12,937.80 and 5,183.60 is: 7,153.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,375.28 : 12,937.80 = 5,183.60 : x
  2. Step 2: Convert to fraction form
    9,375.28/12,937.80 = 5,183.60/x
  3. Step 3: Cross multiply
    9,375.28x = 12,937.80 × 5,183.60
  4. Step 4: Simplify right side
    9,375.28x = 67,064,380.08
  5. Step 5: Solve for x
    x = 67,064,380.08/9,375.28
  6. Step 6: Final answer
    x = 7,153.32

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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.