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Finding the Fourth Proportional to 6,663.57, 9,989.69 and 4,068.33

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Solution

The fourth proportional to 6,663.57, 9,989.69 and 4,068.33 is: 6,099.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,663.57 : 9,989.69 = 4,068.33 : x
  2. Step 2: Convert to fraction form
    6,663.57/9,989.69 = 4,068.33/x
  3. Step 3: Cross multiply
    6,663.57x = 9,989.69 × 4,068.33
  4. Step 4: Simplify right side
    6,663.57x = 40,641,335.18
  5. Step 5: Solve for x
    x = 40,641,335.18/6,663.57
  6. Step 6: Final answer
    x = 6,099.03

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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.