Home / 11,947.29-17,928.72-4,551.81

Finding the Fourth Proportional to 11,947.29, 17,928.72 and 4,551.81

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Solution

The fourth proportional to 11,947.29, 17,928.72 and 4,551.81 is: 6,830.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,947.29 : 17,928.72 = 4,551.81 : x
  2. Step 2: Convert to fraction form
    11,947.29/17,928.72 = 4,551.81/x
  3. Step 3: Cross multiply
    11,947.29x = 17,928.72 × 4,551.81
  4. Step 4: Simplify right side
    11,947.29x = 81,608,126.98
  5. Step 5: Solve for x
    x = 81,608,126.98/11,947.29
  6. Step 6: Final answer
    x = 6,830.68

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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.