Home / 9,874.40-14,817.66-5,197.78

Finding the Fourth Proportional to 9,874.40, 14,817.66 and 5,197.78

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Solution

The fourth proportional to 9,874.40, 14,817.66 and 5,197.78 is: 7,799.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,874.40 : 14,817.66 = 5,197.78 : x
  2. Step 2: Convert to fraction form
    9,874.40/14,817.66 = 5,197.78/x
  3. Step 3: Cross multiply
    9,874.40x = 14,817.66 × 5,197.78
  4. Step 4: Simplify right side
    9,874.40x = 77,018,936.79
  5. Step 5: Solve for x
    x = 77,018,936.79/9,874.40
  6. Step 6: Final answer
    x = 7,799.86

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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.