Home / 15,022.83-20,730.84-8,216.73

Finding the Fourth Proportional to 15,022.83, 20,730.84 and 8,216.73

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Solution

The fourth proportional to 15,022.83, 20,730.84 and 8,216.73 is: 11,338.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,022.83 : 20,730.84 = 8,216.73 : x
  2. Step 2: Convert to fraction form
    15,022.83/20,730.84 = 8,216.73/x
  3. Step 3: Cross multiply
    15,022.83x = 20,730.84 × 8,216.73
  4. Step 4: Simplify right side
    15,022.83x = 170,339,714.95
  5. Step 5: Solve for x
    x = 170,339,714.95/15,022.83
  6. Step 6: Final answer
    x = 11,338.72

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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.