Home / 9,380.75-12,944.31-5,403.16

Finding the Fourth Proportional to 9,380.75, 12,944.31 and 5,403.16

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Solution

The fourth proportional to 9,380.75, 12,944.31 and 5,403.16 is: 7,455.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,380.75 : 12,944.31 = 5,403.16 : x
  2. Step 2: Convert to fraction form
    9,380.75/12,944.31 = 5,403.16/x
  3. Step 3: Cross multiply
    9,380.75x = 12,944.31 × 5,403.16
  4. Step 4: Simplify right side
    9,380.75x = 69,940,113.30
  5. Step 5: Solve for x
    x = 69,940,113.30/9,380.75
  6. Step 6: Final answer
    x = 7,455.71

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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.