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Finding the Fourth Proportional to 6,616.56, 9,924.78 and 1,999.56

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Solution

The fourth proportional to 6,616.56, 9,924.78 and 1,999.56 is: 2,999.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,616.56 : 9,924.78 = 1,999.56 : x
  2. Step 2: Convert to fraction form
    6,616.56/9,924.78 = 1,999.56/x
  3. Step 3: Cross multiply
    6,616.56x = 9,924.78 × 1,999.56
  4. Step 4: Simplify right side
    6,616.56x = 19,845,193.10
  5. Step 5: Solve for x
    x = 19,845,193.10/6,616.56
  6. Step 6: Final answer
    x = 2,999.32

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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.