Home / 7,986.56-11,012.82-4,998.86

Finding the Fourth Proportional to 7,986.56, 11,012.82 and 4,998.86

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Solution

The fourth proportional to 7,986.56, 11,012.82 and 4,998.86 is: 6,893.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.56 : 11,012.82 = 4,998.86 : x
  2. Step 2: Convert to fraction form
    7,986.56/11,012.82 = 4,998.86/x
  3. Step 3: Cross multiply
    7,986.56x = 11,012.82 × 4,998.86
  4. Step 4: Simplify right side
    7,986.56x = 55,051,545.39
  5. Step 5: Solve for x
    x = 55,051,545.39/7,986.56
  6. Step 6: Final answer
    x = 6,893.02

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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.