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Finding the Fourth Proportional to 8,506.80, 11,740.08 and 4,971.12

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Solution

The fourth proportional to 8,506.80, 11,740.08 and 4,971.12 is: 6,860.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,506.80 : 11,740.08 = 4,971.12 : x
  2. Step 2: Convert to fraction form
    8,506.80/11,740.08 = 4,971.12/x
  3. Step 3: Cross multiply
    8,506.80x = 11,740.08 × 4,971.12
  4. Step 4: Simplify right side
    8,506.80x = 58,361,346.49
  5. Step 5: Solve for x
    x = 58,361,346.49/8,506.80
  6. Step 6: Final answer
    x = 6,860.55

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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.