Home / 8,282.26-11,433.75-6,389.60

Finding the Fourth Proportional to 8,282.26, 11,433.75 and 6,389.60

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Solution

The fourth proportional to 8,282.26, 11,433.75 and 6,389.60 is: 8,820.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,282.26 : 11,433.75 = 6,389.60 : x
  2. Step 2: Convert to fraction form
    8,282.26/11,433.75 = 6,389.60/x
  3. Step 3: Cross multiply
    8,282.26x = 11,433.75 × 6,389.60
  4. Step 4: Simplify right side
    8,282.26x = 73,057,043.81
  5. Step 5: Solve for x
    x = 73,057,043.81/8,282.26
  6. Step 6: Final answer
    x = 8,820.91

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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.