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Finding the Fourth Proportional to 8,572.86, 11,831.12 and 4,796.36

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Solution

The fourth proportional to 8,572.86, 11,831.12 and 4,796.36 is: 6,619.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,572.86 : 11,831.12 = 4,796.36 : x
  2. Step 2: Convert to fraction form
    8,572.86/11,831.12 = 4,796.36/x
  3. Step 3: Cross multiply
    8,572.86x = 11,831.12 × 4,796.36
  4. Step 4: Simplify right side
    8,572.86x = 56,746,310.72
  5. Step 5: Solve for x
    x = 56,746,310.72/8,572.86
  6. Step 6: Final answer
    x = 6,619.30

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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.