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Finding the Fourth Proportional to 8,679.63, 13,017.81 and 4,232.84

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Solution

The fourth proportional to 8,679.63, 13,017.81 and 4,232.84 is: 6,348.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,679.63 : 13,017.81 = 4,232.84 : x
  2. Step 2: Convert to fraction form
    8,679.63/13,017.81 = 4,232.84/x
  3. Step 3: Cross multiply
    8,679.63x = 13,017.81 × 4,232.84
  4. Step 4: Simplify right side
    8,679.63x = 55,102,306.88
  5. Step 5: Solve for x
    x = 55,102,306.88/8,679.63
  6. Step 6: Final answer
    x = 6,348.46

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1.5x scale

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.