Home / 8,179.76-11,287.68-4,642.50

Finding the Fourth Proportional to 8,179.76, 11,287.68 and 4,642.50

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Solution

The fourth proportional to 8,179.76, 11,287.68 and 4,642.50 is: 6,406.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,179.76 : 11,287.68 = 4,642.50 : x
  2. Step 2: Convert to fraction form
    8,179.76/11,287.68 = 4,642.50/x
  3. Step 3: Cross multiply
    8,179.76x = 11,287.68 × 4,642.50
  4. Step 4: Simplify right side
    8,179.76x = 52,403,054.40
  5. Step 5: Solve for x
    x = 52,403,054.40/8,179.76
  6. Step 6: Final answer
    x = 6,406.43

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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.