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Finding the Fourth Proportional to 8,772.69, 13,162.68 and 4,611.70

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Solution

The fourth proportional to 8,772.69, 13,162.68 and 4,611.70 is: 6,919.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,772.69 : 13,162.68 = 4,611.70 : x
  2. Step 2: Convert to fraction form
    8,772.69/13,162.68 = 4,611.70/x
  3. Step 3: Cross multiply
    8,772.69x = 13,162.68 × 4,611.70
  4. Step 4: Simplify right side
    8,772.69x = 60,702,331.36
  5. Step 5: Solve for x
    x = 60,702,331.36/8,772.69
  6. Step 6: Final answer
    x = 6,919.47

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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.