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Finding the Fourth Proportional to 8,658, 12,989.16 and 2,502

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Solution

The fourth proportional to 8,658, 12,989.16 and 2,502 is: 3,753.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,658 : 12,989.16 = 2,502 : x
  2. Step 2: Convert to fraction form
    8,658/12,989.16 = 2,502/x
  3. Step 3: Cross multiply
    8,658x = 12,989.16 × 2,502
  4. Step 4: Simplify right side
    8,658x = 32,498,878.32
  5. Step 5: Solve for x
    x = 32,498,878.32/8,658
  6. Step 6: Final answer
    x = 3,753.62

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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.