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Finding the Fourth Proportional to 6,643.30, 9,968.55 and 5,673.70

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Solution

The fourth proportional to 6,643.30, 9,968.55 and 5,673.70 is: 8,513.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,643.30 : 9,968.55 = 5,673.70 : x
  2. Step 2: Convert to fraction form
    6,643.30/9,968.55 = 5,673.70/x
  3. Step 3: Cross multiply
    6,643.30x = 9,968.55 × 5,673.70
  4. Step 4: Simplify right side
    6,643.30x = 56,558,562.14
  5. Step 5: Solve for x
    x = 56,558,562.14/6,643.30
  6. Step 6: Final answer
    x = 8,513.62

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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.