Home / 9,382.24-12,947.68-5,190.56

Finding the Fourth Proportional to 9,382.24, 12,947.68 and 5,190.56

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Solution

The fourth proportional to 9,382.24, 12,947.68 and 5,190.56 is: 7,163.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,382.24 : 12,947.68 = 5,190.56 : x
  2. Step 2: Convert to fraction form
    9,382.24/12,947.68 = 5,190.56/x
  3. Step 3: Cross multiply
    9,382.24x = 12,947.68 × 5,190.56
  4. Step 4: Simplify right side
    9,382.24x = 67,205,709.90
  5. Step 5: Solve for x
    x = 67,205,709.90/9,382.24
  6. Step 6: Final answer
    x = 7,163.08

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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.