Home / 9,382.38-12,947.73-5,190.63

Finding the Fourth Proportional to 9,382.38, 12,947.73 and 5,190.63

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Solution

The fourth proportional to 9,382.38, 12,947.73 and 5,190.63 is: 7,163.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,382.38 : 12,947.73 = 5,190.63 : x
  2. Step 2: Convert to fraction form
    9,382.38/12,947.73 = 5,190.63/x
  3. Step 3: Cross multiply
    9,382.38x = 12,947.73 × 5,190.63
  4. Step 4: Simplify right side
    9,382.38x = 67,206,875.77
  5. Step 5: Solve for x
    x = 67,206,875.77/9,382.38
  6. Step 6: Final answer
    x = 7,163.09

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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.