Home / 9,817.10-14,717.40-3,977.80

Finding the Fourth Proportional to 9,817.10, 14,717.40 and 3,977.80

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Solution

The fourth proportional to 9,817.10, 14,717.40 and 3,977.80 is: 5,963.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,817.10 : 14,717.40 = 3,977.80 : x
  2. Step 2: Convert to fraction form
    9,817.10/14,717.40 = 3,977.80/x
  3. Step 3: Cross multiply
    9,817.10x = 14,717.40 × 3,977.80
  4. Step 4: Simplify right side
    9,817.10x = 58,542,873.72
  5. Step 5: Solve for x
    x = 58,542,873.72/9,817.10
  6. Step 6: Final answer
    x = 5,963.36

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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.