Home / 19,498.32-29,198.88-11,712.60

Finding the Fourth Proportional to 19,498.32, 29,198.88 and 11,712.60

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Solution

The fourth proportional to 19,498.32, 29,198.88 and 11,712.60 is: 17,539.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,498.32 : 29,198.88 = 11,712.60 : x
  2. Step 2: Convert to fraction form
    19,498.32/29,198.88 = 11,712.60/x
  3. Step 3: Cross multiply
    19,498.32x = 29,198.88 × 11,712.60
  4. Step 4: Simplify right side
    19,498.32x = 341,994,801.89
  5. Step 5: Solve for x
    x = 341,994,801.89/19,498.32
  6. Step 6: Final answer
    x = 17,539.71

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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.