Home / 8,538.18-11,782.68-4,761.68

Finding the Fourth Proportional to 8,538.18, 11,782.68 and 4,761.68

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Solution

The fourth proportional to 8,538.18, 11,782.68 and 4,761.68 is: 6,571.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,538.18 : 11,782.68 = 4,761.68 : x
  2. Step 2: Convert to fraction form
    8,538.18/11,782.68 = 4,761.68/x
  3. Step 3: Cross multiply
    8,538.18x = 11,782.68 × 4,761.68
  4. Step 4: Simplify right side
    8,538.18x = 56,105,351.70
  5. Step 5: Solve for x
    x = 56,105,351.70/8,538.18
  6. Step 6: Final answer
    x = 6,571.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.