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Finding the Fourth Proportional to 8,853.75, 13,280.63 and 3,659.76

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Solution

The fourth proportional to 8,853.75, 13,280.63 and 3,659.76 is: 5,489.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,853.75 : 13,280.63 = 3,659.76 : x
  2. Step 2: Convert to fraction form
    8,853.75/13,280.63 = 3,659.76/x
  3. Step 3: Cross multiply
    8,853.75x = 13,280.63 × 3,659.76
  4. Step 4: Simplify right side
    8,853.75x = 48,603,900.15
  5. Step 5: Solve for x
    x = 48,603,900.15/8,853.75
  6. Step 6: Final answer
    x = 5,489.64

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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.