Home / 19,906.39-29,860.40-6,758.88

Finding the Fourth Proportional to 19,906.39, 29,860.40 and 6,758.88

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Solution

The fourth proportional to 19,906.39, 29,860.40 and 6,758.88 is: 10,138.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,906.39 : 29,860.40 = 6,758.88 : x
  2. Step 2: Convert to fraction form
    19,906.39/29,860.40 = 6,758.88/x
  3. Step 3: Cross multiply
    19,906.39x = 29,860.40 × 6,758.88
  4. Step 4: Simplify right side
    19,906.39x = 201,822,860.35
  5. Step 5: Solve for x
    x = 201,822,860.35/19,906.39
  6. Step 6: Final answer
    x = 10,138.60

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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.