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Finding the Fourth Proportional to 19,805.00, 29,714.11 and 6,478.60

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Solution

The fourth proportional to 19,805.00, 29,714.11 and 6,478.60 is: 9,720.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,805.00 : 29,714.11 = 6,478.60 : x
  2. Step 2: Convert to fraction form
    19,805.00/29,714.11 = 6,478.60/x
  3. Step 3: Cross multiply
    19,805.00x = 29,714.11 × 6,478.60
  4. Step 4: Simplify right side
    19,805.00x = 192,505,783.06
  5. Step 5: Solve for x
    x = 192,505,783.06/19,805.00
  6. Step 6: Final answer
    x = 9,720.06

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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.