Home / 8,819.14-12,170.96-5,829.79

Finding the Fourth Proportional to 8,819.14, 12,170.96 and 5,829.79

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Solution

The fourth proportional to 8,819.14, 12,170.96 and 5,829.79 is: 8,045.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,819.14 : 12,170.96 = 5,829.79 : x
  2. Step 2: Convert to fraction form
    8,819.14/12,170.96 = 5,829.79/x
  3. Step 3: Cross multiply
    8,819.14x = 12,170.96 × 5,829.79
  4. Step 4: Simplify right side
    8,819.14x = 70,954,140.90
  5. Step 5: Solve for x
    x = 70,954,140.90/8,819.14
  6. Step 6: Final answer
    x = 8,045.47

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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.