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Finding the Fourth Proportional to 8,370.66, 12,555.98 and 3,176.54

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Solution

The fourth proportional to 8,370.66, 12,555.98 and 3,176.54 is: 4,764.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,370.66 : 12,555.98 = 3,176.54 : x
  2. Step 2: Convert to fraction form
    8,370.66/12,555.98 = 3,176.54/x
  3. Step 3: Cross multiply
    8,370.66x = 12,555.98 × 3,176.54
  4. Step 4: Simplify right side
    8,370.66x = 39,884,572.71
  5. Step 5: Solve for x
    x = 39,884,572.71/8,370.66
  6. Step 6: Final answer
    x = 4,764.81

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.