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Finding the Fourth Proportional to 6,646.93, 9,951.08 and 3,865.12

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Solution

The fourth proportional to 6,646.93, 9,951.08 and 3,865.12 is: 5,786.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,646.93 : 9,951.08 = 3,865.12 : x
  2. Step 2: Convert to fraction form
    6,646.93/9,951.08 = 3,865.12/x
  3. Step 3: Cross multiply
    6,646.93x = 9,951.08 × 3,865.12
  4. Step 4: Simplify right side
    6,646.93x = 38,462,074.13
  5. Step 5: Solve for x
    x = 38,462,074.13/6,646.93
  6. Step 6: Final answer
    x = 5,786.44

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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.