Home / 9,382.26-12,947.50-5,190.50

Finding the Fourth Proportional to 9,382.26, 12,947.50 and 5,190.50

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Solution

The fourth proportional to 9,382.26, 12,947.50 and 5,190.50 is: 7,162.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,382.26 : 12,947.50 = 5,190.50 : x
  2. Step 2: Convert to fraction form
    9,382.26/12,947.50 = 5,190.50/x
  3. Step 3: Cross multiply
    9,382.26x = 12,947.50 × 5,190.50
  4. Step 4: Simplify right side
    9,382.26x = 67,203,998.75
  5. Step 5: Solve for x
    x = 67,203,998.75/9,382.26
  6. Step 6: Final answer
    x = 7,162.88

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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.