Home / 10,983.50-15,157.22-5,947.72

Finding the Fourth Proportional to 10,983.50, 15,157.22 and 5,947.72

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Solution

The fourth proportional to 10,983.50, 15,157.22 and 5,947.72 is: 8,207.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,983.50 : 15,157.22 = 5,947.72 : x
  2. Step 2: Convert to fraction form
    10,983.50/15,157.22 = 5,947.72/x
  3. Step 3: Cross multiply
    10,983.50x = 15,157.22 × 5,947.72
  4. Step 4: Simplify right side
    10,983.50x = 90,150,900.54
  5. Step 5: Solve for x
    x = 90,150,900.54/10,983.50
  6. Step 6: Final answer
    x = 8,207.85

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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.