Home / 7,947.48-11,938.50-5,355.48

Finding the Fourth Proportional to 7,947.48, 11,938.50 and 5,355.48

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Solution

The fourth proportional to 7,947.48, 11,938.50 and 5,355.48 is: 8,044.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947.48 : 11,938.50 = 5,355.48 : x
  2. Step 2: Convert to fraction form
    7,947.48/11,938.50 = 5,355.48/x
  3. Step 3: Cross multiply
    7,947.48x = 11,938.50 × 5,355.48
  4. Step 4: Simplify right side
    7,947.48x = 63,936,397.98
  5. Step 5: Solve for x
    x = 63,936,397.98/7,947.48
  6. Step 6: Final answer
    x = 8,044.86

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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.