Home / 14,579.58-20,121.66-8,290.74

Finding the Fourth Proportional to 14,579.58, 20,121.66 and 8,290.74

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Solution

The fourth proportional to 14,579.58, 20,121.66 and 8,290.74 is: 11,442.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,579.58 : 20,121.66 = 8,290.74 : x
  2. Step 2: Convert to fraction form
    14,579.58/20,121.66 = 8,290.74/x
  3. Step 3: Cross multiply
    14,579.58x = 20,121.66 × 8,290.74
  4. Step 4: Simplify right side
    14,579.58x = 166,823,451.43
  5. Step 5: Solve for x
    x = 166,823,451.43/14,579.58
  6. Step 6: Final answer
    x = 11,442.27

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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.