Home / 8,819.54-12,170.96-5,284.79

Finding the Fourth Proportional to 8,819.54, 12,170.96 and 5,284.79

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Solution

The fourth proportional to 8,819.54, 12,170.96 and 5,284.79 is: 7,293.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,819.54 : 12,170.96 = 5,284.79 : x
  2. Step 2: Convert to fraction form
    8,819.54/12,170.96 = 5,284.79/x
  3. Step 3: Cross multiply
    8,819.54x = 12,170.96 × 5,284.79
  4. Step 4: Simplify right side
    8,819.54x = 64,320,991.52
  5. Step 5: Solve for x
    x = 64,320,991.52/8,819.54
  6. Step 6: Final answer
    x = 7,293.01

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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.