Home / 6,663.48-9,989.70-3,883.32

Finding the Fourth Proportional to 6,663.48, 9,989.70 and 3,883.32

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Solution

The fourth proportional to 6,663.48, 9,989.70 and 3,883.32 is: 5,821.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,663.48 : 9,989.70 = 3,883.32 : x
  2. Step 2: Convert to fraction form
    6,663.48/9,989.70 = 3,883.32/x
  3. Step 3: Cross multiply
    6,663.48x = 9,989.70 × 3,883.32
  4. Step 4: Simplify right side
    6,663.48x = 38,793,201.80
  5. Step 5: Solve for x
    x = 38,793,201.80/6,663.48
  6. Step 6: Final answer
    x = 5,821.76

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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.