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Finding the Fourth Proportional to 8,393.43, 12,584.75 and 7,223.79

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Solution

The fourth proportional to 8,393.43, 12,584.75 and 7,223.79 is: 10,831.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,393.43 : 12,584.75 = 7,223.79 : x
  2. Step 2: Convert to fraction form
    8,393.43/12,584.75 = 7,223.79/x
  3. Step 3: Cross multiply
    8,393.43x = 12,584.75 × 7,223.79
  4. Step 4: Simplify right side
    8,393.43x = 90,909,555.08
  5. Step 5: Solve for x
    x = 90,909,555.08/8,393.43
  6. Step 6: Final answer
    x = 10,831.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.