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Finding the Fourth Proportional to 8,448.71, 11,659.16 and 4,671.89

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Solution

The fourth proportional to 8,448.71, 11,659.16 and 4,671.89 is: 6,447.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,448.71 : 11,659.16 = 4,671.89 : x
  2. Step 2: Convert to fraction form
    8,448.71/11,659.16 = 4,671.89/x
  3. Step 3: Cross multiply
    8,448.71x = 11,659.16 × 4,671.89
  4. Step 4: Simplify right side
    8,448.71x = 54,470,266.40
  5. Step 5: Solve for x
    x = 54,470,266.40/8,448.71
  6. Step 6: Final answer
    x = 6,447.17

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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.