Home / 9,372-12,933.36-5,180.64

Finding the Fourth Proportional to 9,372, 12,933.36 and 5,180.64

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Solution

The fourth proportional to 9,372, 12,933.36 and 5,180.64 is: 7,149.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,372 : 12,933.36 = 5,180.64 : x
  2. Step 2: Convert to fraction form
    9,372/12,933.36 = 5,180.64/x
  3. Step 3: Cross multiply
    9,372x = 12,933.36 × 5,180.64
  4. Step 4: Simplify right side
    9,372x = 67,003,082.15
  5. Step 5: Solve for x
    x = 67,003,082.15/9,372
  6. Step 6: Final answer
    x = 7,149.28

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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.