Home / 8,630.38-12,943.70-3,084.11

Finding the Fourth Proportional to 8,630.38, 12,943.70 and 3,084.11

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Solution

The fourth proportional to 8,630.38, 12,943.70 and 3,084.11 is: 4,625.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,630.38 : 12,943.70 = 3,084.11 : x
  2. Step 2: Convert to fraction form
    8,630.38/12,943.70 = 3,084.11/x
  3. Step 3: Cross multiply
    8,630.38x = 12,943.70 × 3,084.11
  4. Step 4: Simplify right side
    8,630.38x = 39,919,774.57
  5. Step 5: Solve for x
    x = 39,919,774.57/8,630.38
  6. Step 6: Final answer
    x = 4,625.49

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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.