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Finding the Fourth Proportional to 8,747.80, 12,071.97 and 4,768.92

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Solution

The fourth proportional to 8,747.80, 12,071.97 and 4,768.92 is: 6,581.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,747.80 : 12,071.97 = 4,768.92 : x
  2. Step 2: Convert to fraction form
    8,747.80/12,071.97 = 4,768.92/x
  3. Step 3: Cross multiply
    8,747.80x = 12,071.97 × 4,768.92
  4. Step 4: Simplify right side
    8,747.80x = 57,570,259.17
  5. Step 5: Solve for x
    x = 57,570,259.17/8,747.80
  6. Step 6: Final answer
    x = 6,581.11

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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.