Home / 18,833.21-28,215.38-8,819.58

Finding the Fourth Proportional to 18,833.21, 28,215.38 and 8,819.58

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Solution

The fourth proportional to 18,833.21, 28,215.38 and 8,819.58 is: 13,213.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,833.21 : 28,215.38 = 8,819.58 : x
  2. Step 2: Convert to fraction form
    18,833.21/28,215.38 = 8,819.58/x
  3. Step 3: Cross multiply
    18,833.21x = 28,215.38 × 8,819.58
  4. Step 4: Simplify right side
    18,833.21x = 248,847,757.04
  5. Step 5: Solve for x
    x = 248,847,757.04/18,833.21
  6. Step 6: Final answer
    x = 13,213.25

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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.