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Finding the Fourth Proportional to 6,663.56, 9,999.66 and 2,969.96

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Solution

The fourth proportional to 6,663.56, 9,999.66 and 2,969.96 is: 4,456.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,663.56 : 9,999.66 = 2,969.96 : x
  2. Step 2: Convert to fraction form
    6,663.56/9,999.66 = 2,969.96/x
  3. Step 3: Cross multiply
    6,663.56x = 9,999.66 × 2,969.96
  4. Step 4: Simplify right side
    6,663.56x = 29,698,590.21
  5. Step 5: Solve for x
    x = 29,698,590.21/6,663.56
  6. Step 6: Final answer
    x = 4,456.87

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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.