Home / 7,947.70-11,921.55-2,753.58

Finding the Fourth Proportional to 7,947.70, 11,921.55 and 2,753.58

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Solution

The fourth proportional to 7,947.70, 11,921.55 and 2,753.58 is: 4,130.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947.70 : 11,921.55 = 2,753.58 : x
  2. Step 2: Convert to fraction form
    7,947.70/11,921.55 = 2,753.58/x
  3. Step 3: Cross multiply
    7,947.70x = 11,921.55 × 2,753.58
  4. Step 4: Simplify right side
    7,947.70x = 32,826,932.20
  5. Step 5: Solve for x
    x = 32,826,932.20/7,947.70
  6. Step 6: Final answer
    x = 4,130.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.