Home / 10,628.82-15,947.28-5,084.64

Finding the Fourth Proportional to 10,628.82, 15,947.28 and 5,084.64

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Solution

The fourth proportional to 10,628.82, 15,947.28 and 5,084.64 is: 7,628.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,628.82 : 15,947.28 = 5,084.64 : x
  2. Step 2: Convert to fraction form
    10,628.82/15,947.28 = 5,084.64/x
  3. Step 3: Cross multiply
    10,628.82x = 15,947.28 × 5,084.64
  4. Step 4: Simplify right side
    10,628.82x = 81,086,177.78
  5. Step 5: Solve for x
    x = 81,086,177.78/10,628.82
  6. Step 6: Final answer
    x = 7,628.90

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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.