Home / 7,947.51-11,921.28-2,753.39

Finding the Fourth Proportional to 7,947.51, 11,921.28 and 2,753.39

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Solution

The fourth proportional to 7,947.51, 11,921.28 and 2,753.39 is: 4,130.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947.51 : 11,921.28 = 2,753.39 : x
  2. Step 2: Convert to fraction form
    7,947.51/11,921.28 = 2,753.39/x
  3. Step 3: Cross multiply
    7,947.51x = 11,921.28 × 2,753.39
  4. Step 4: Simplify right side
    7,947.51x = 32,823,873.53
  5. Step 5: Solve for x
    x = 32,823,873.53/7,947.51
  6. Step 6: Final answer
    x = 4,130.08

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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.