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Finding the Fourth Proportional to 8,762.49, 12,091.68 and 5,225.76

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Solution

The fourth proportional to 8,762.49, 12,091.68 and 5,225.76 is: 7,211.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,762.49 : 12,091.68 = 5,225.76 : x
  2. Step 2: Convert to fraction form
    8,762.49/12,091.68 = 5,225.76/x
  3. Step 3: Cross multiply
    8,762.49x = 12,091.68 × 5,225.76
  4. Step 4: Simplify right side
    8,762.49x = 63,188,217.68
  5. Step 5: Solve for x
    x = 63,188,217.68/8,762.49
  6. Step 6: Final answer
    x = 7,211.22

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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.