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Finding the Fourth Proportional to 19,850.58, 29,769.96 and 8,754.39

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Solution

The fourth proportional to 19,850.58, 29,769.96 and 8,754.39 is: 13,128.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,850.58 : 29,769.96 = 8,754.39 : x
  2. Step 2: Convert to fraction form
    19,850.58/29,769.96 = 8,754.39/x
  3. Step 3: Cross multiply
    19,850.58x = 29,769.96 × 8,754.39
  4. Step 4: Simplify right side
    19,850.58x = 260,617,840.12
  5. Step 5: Solve for x
    x = 260,617,840.12/19,850.58
  6. Step 6: Final answer
    x = 13,128.98

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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.