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Finding the Fourth Proportional to 8,416.47, 11,612.86 and 4,831.21

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Solution

The fourth proportional to 8,416.47, 11,612.86 and 4,831.21 is: 6,666.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,416.47 : 11,612.86 = 4,831.21 : x
  2. Step 2: Convert to fraction form
    8,416.47/11,612.86 = 4,831.21/x
  3. Step 3: Cross multiply
    8,416.47x = 11,612.86 × 4,831.21
  4. Step 4: Simplify right side
    8,416.47x = 56,104,165.36
  5. Step 5: Solve for x
    x = 56,104,165.36/8,416.47
  6. Step 6: Final answer
    x = 6,666.00

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.