Home / 19,763.62-29,640.39-8,074.66

Finding the Fourth Proportional to 19,763.62, 29,640.39 and 8,074.66

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Solution

The fourth proportional to 19,763.62, 29,640.39 and 8,074.66 is: 12,109.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,763.62 : 29,640.39 = 8,074.66 : x
  2. Step 2: Convert to fraction form
    19,763.62/29,640.39 = 8,074.66/x
  3. Step 3: Cross multiply
    19,763.62x = 29,640.39 × 8,074.66
  4. Step 4: Simplify right side
    19,763.62x = 239,336,071.52
  5. Step 5: Solve for x
    x = 239,336,071.52/19,763.62
  6. Step 6: Final answer
    x = 12,109.93

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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.