Home / 8,486.25-11,711.04-4,709.28

Finding the Fourth Proportional to 8,486.25, 11,711.04 and 4,709.28

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Solution

The fourth proportional to 8,486.25, 11,711.04 and 4,709.28 is: 6,498.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,486.25 : 11,711.04 = 4,709.28 : x
  2. Step 2: Convert to fraction form
    8,486.25/11,711.04 = 4,709.28/x
  3. Step 3: Cross multiply
    8,486.25x = 11,711.04 × 4,709.28
  4. Step 4: Simplify right side
    8,486.25x = 55,150,566.45
  5. Step 5: Solve for x
    x = 55,150,566.45/8,486.25
  6. Step 6: Final answer
    x = 6,498.81

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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.