Home / 7,947.56-11,921.36-2,753.44

Finding the Fourth Proportional to 7,947.56, 11,921.36 and 2,753.44

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Solution

The fourth proportional to 7,947.56, 11,921.36 and 2,753.44 is: 4,130.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947.56 : 11,921.36 = 2,753.44 : x
  2. Step 2: Convert to fraction form
    7,947.56/11,921.36 = 2,753.44/x
  3. Step 3: Cross multiply
    7,947.56x = 11,921.36 × 2,753.44
  4. Step 4: Simplify right side
    7,947.56x = 32,824,735.71
  5. Step 5: Solve for x
    x = 32,824,735.71/7,947.56
  6. Step 6: Final answer
    x = 4,130.17

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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.