Home / 11,372.87-15,694.58-7,400.73

Finding the Fourth Proportional to 11,372.87, 15,694.58 and 7,400.73

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Solution

The fourth proportional to 11,372.87, 15,694.58 and 7,400.73 is: 10,213.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,372.87 : 15,694.58 = 7,400.73 : x
  2. Step 2: Convert to fraction form
    11,372.87/15,694.58 = 7,400.73/x
  3. Step 3: Cross multiply
    11,372.87x = 15,694.58 × 7,400.73
  4. Step 4: Simplify right side
    11,372.87x = 116,151,312.04
  5. Step 5: Solve for x
    x = 116,151,312.04/11,372.87
  6. Step 6: Final answer
    x = 10,213.02

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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.