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Finding the Fourth Proportional to 8,862.96, 13,291.20 and 3,018

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Solution

The fourth proportional to 8,862.96, 13,291.20 and 3,018 is: 4,525.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,862.96 : 13,291.20 = 3,018 : x
  2. Step 2: Convert to fraction form
    8,862.96/13,291.20 = 3,018/x
  3. Step 3: Cross multiply
    8,862.96x = 13,291.20 × 3,018
  4. Step 4: Simplify right side
    8,862.96x = 40,112,841.60
  5. Step 5: Solve for x
    x = 40,112,841.60/8,862.96
  6. Step 6: Final answer
    x = 4,525.90

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Why These Related Problems?

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