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Finding the Fourth Proportional to 8,966.60, 13,440.30 and 4,035.40

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Solution

The fourth proportional to 8,966.60, 13,440.30 and 4,035.40 is: 6,048.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,966.60 : 13,440.30 = 4,035.40 : x
  2. Step 2: Convert to fraction form
    8,966.60/13,440.30 = 4,035.40/x
  3. Step 3: Cross multiply
    8,966.60x = 13,440.30 × 4,035.40
  4. Step 4: Simplify right side
    8,966.60x = 54,236,986.62
  5. Step 5: Solve for x
    x = 54,236,986.62/8,966.60
  6. Step 6: Final answer
    x = 6,048.78

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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.