Home / 19,905.39-29,858.90-6,757.88

Finding the Fourth Proportional to 19,905.39, 29,858.90 and 6,757.88

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Solution

The fourth proportional to 19,905.39, 29,858.90 and 6,757.88 is: 10,137.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,905.39 : 29,858.90 = 6,757.88 : x
  2. Step 2: Convert to fraction form
    19,905.39/29,858.90 = 6,757.88/x
  3. Step 3: Cross multiply
    19,905.39x = 29,858.90 × 6,757.88
  4. Step 4: Simplify right side
    19,905.39x = 201,782,680.05
  5. Step 5: Solve for x
    x = 201,782,680.05/19,905.39
  6. Step 6: Final answer
    x = 10,137.09

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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.