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Finding the Fourth Proportional to 8,875.26, 13,290.12 and 8,612.48

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Solution

The fourth proportional to 8,875.26, 13,290.12 and 8,612.48 is: 12,896.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,875.26 : 13,290.12 = 8,612.48 : x
  2. Step 2: Convert to fraction form
    8,875.26/13,290.12 = 8,612.48/x
  3. Step 3: Cross multiply
    8,875.26x = 13,290.12 × 8,612.48
  4. Step 4: Simplify right side
    8,875.26x = 114,460,826.25
  5. Step 5: Solve for x
    x = 114,460,826.25/8,875.26
  6. Step 6: Final answer
    x = 12,896.62

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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.