Home / 19,799.05-29,698.60-8,120.47

Finding the Fourth Proportional to 19,799.05, 29,698.60 and 8,120.47

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Solution

The fourth proportional to 19,799.05, 29,698.60 and 8,120.47 is: 12,180.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,799.05 : 29,698.60 = 8,120.47 : x
  2. Step 2: Convert to fraction form
    19,799.05/29,698.60 = 8,120.47/x
  3. Step 3: Cross multiply
    19,799.05x = 29,698.60 × 8,120.47
  4. Step 4: Simplify right side
    19,799.05x = 241,166,590.34
  5. Step 5: Solve for x
    x = 241,166,590.34/19,799.05
  6. Step 6: Final answer
    x = 12,180.72

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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.