Home / 8,135.15-11,226.53-5,147.87

Finding the Fourth Proportional to 8,135.15, 11,226.53 and 5,147.87

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Solution

The fourth proportional to 8,135.15, 11,226.53 and 5,147.87 is: 7,104.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,135.15 : 11,226.53 = 5,147.87 : x
  2. Step 2: Convert to fraction form
    8,135.15/11,226.53 = 5,147.87/x
  3. Step 3: Cross multiply
    8,135.15x = 11,226.53 × 5,147.87
  4. Step 4: Simplify right side
    8,135.15x = 57,792,673.73
  5. Step 5: Solve for x
    x = 57,792,673.73/8,135.15
  6. Step 6: Final answer
    x = 7,104.07

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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.