Home / 8,135.76-11,228.02-4,992.68

Finding the Fourth Proportional to 8,135.76, 11,228.02 and 4,992.68

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Solution

The fourth proportional to 8,135.76, 11,228.02 and 4,992.68 is: 6,890.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,135.76 : 11,228.02 = 4,992.68 : x
  2. Step 2: Convert to fraction form
    8,135.76/11,228.02 = 4,992.68/x
  3. Step 3: Cross multiply
    8,135.76x = 11,228.02 × 4,992.68
  4. Step 4: Simplify right side
    8,135.76x = 56,057,910.89
  5. Step 5: Solve for x
    x = 56,057,910.89/8,135.76
  6. Step 6: Final answer
    x = 6,890.31

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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.