Home / 8,631-12,946.62-3,084.69

Finding the Fourth Proportional to 8,631, 12,946.62 and 3,084.69

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Solution

The fourth proportional to 8,631, 12,946.62 and 3,084.69 is: 4,627.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,631 : 12,946.62 = 3,084.69 : x
  2. Step 2: Convert to fraction form
    8,631/12,946.62 = 3,084.69/x
  3. Step 3: Cross multiply
    8,631x = 12,946.62 × 3,084.69
  4. Step 4: Simplify right side
    8,631x = 39,936,309.25
  5. Step 5: Solve for x
    x = 39,936,309.25/8,631
  6. Step 6: Final answer
    x = 4,627.08

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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.