Home / 12,116.32-18,182.82-4,720.84

Finding the Fourth Proportional to 12,116.32, 18,182.82 and 4,720.84

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Solution

The fourth proportional to 12,116.32, 18,182.82 and 4,720.84 is: 7,084.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,116.32 : 18,182.82 = 4,720.84 : x
  2. Step 2: Convert to fraction form
    12,116.32/18,182.82 = 4,720.84/x
  3. Step 3: Cross multiply
    12,116.32x = 18,182.82 × 4,720.84
  4. Step 4: Simplify right side
    12,116.32x = 85,838,183.97
  5. Step 5: Solve for x
    x = 85,838,183.97/12,116.32
  6. Step 6: Final answer
    x = 7,084.51

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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.