Home / 8,261.90-11,405.86-6,369.33

Finding the Fourth Proportional to 8,261.90, 11,405.86 and 6,369.33

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Solution

The fourth proportional to 8,261.90, 11,405.86 and 6,369.33 is: 8,793.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,261.90 : 11,405.86 = 6,369.33 : x
  2. Step 2: Convert to fraction form
    8,261.90/11,405.86 = 6,369.33/x
  3. Step 3: Cross multiply
    8,261.90x = 11,405.86 × 6,369.33
  4. Step 4: Simplify right side
    8,261.90x = 72,647,670.35
  5. Step 5: Solve for x
    x = 72,647,670.35/8,261.90
  6. Step 6: Final answer
    x = 8,793.10

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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.