Home / 8,563.43-12,840.28-5,103.11

Finding the Fourth Proportional to 8,563.43, 12,840.28 and 5,103.11

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Solution

The fourth proportional to 8,563.43, 12,840.28 and 5,103.11 is: 7,651.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,563.43 : 12,840.28 = 5,103.11 : x
  2. Step 2: Convert to fraction form
    8,563.43/12,840.28 = 5,103.11/x
  3. Step 3: Cross multiply
    8,563.43x = 12,840.28 × 5,103.11
  4. Step 4: Simplify right side
    8,563.43x = 65,525,361.27
  5. Step 5: Solve for x
    x = 65,525,361.27/8,563.43
  6. Step 6: Final answer
    x = 7,651.77

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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.