Home / 8,112.86-11,195.75-4,528.09

Finding the Fourth Proportional to 8,112.86, 11,195.75 and 4,528.09

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Solution

The fourth proportional to 8,112.86, 11,195.75 and 4,528.09 is: 6,248.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,112.86 : 11,195.75 = 4,528.09 : x
  2. Step 2: Convert to fraction form
    8,112.86/11,195.75 = 4,528.09/x
  3. Step 3: Cross multiply
    8,112.86x = 11,195.75 × 4,528.09
  4. Step 4: Simplify right side
    8,112.86x = 50,695,346.95
  5. Step 5: Solve for x
    x = 50,695,346.95/8,112.86
  6. Step 6: Final answer
    x = 6,248.77

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1.5x scale

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.