Home / 8,819.84-12,173.97-5,045.15

Finding the Fourth Proportional to 8,819.84, 12,173.97 and 5,045.15

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Solution

The fourth proportional to 8,819.84, 12,173.97 and 5,045.15 is: 6,963.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,819.84 : 12,173.97 = 5,045.15 : x
  2. Step 2: Convert to fraction form
    8,819.84/12,173.97 = 5,045.15/x
  3. Step 3: Cross multiply
    8,819.84x = 12,173.97 × 5,045.15
  4. Step 4: Simplify right side
    8,819.84x = 61,419,504.75
  5. Step 5: Solve for x
    x = 61,419,504.75/8,819.84
  6. Step 6: Final answer
    x = 6,963.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.