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Finding the Fourth Proportional to 6,647.26, 9,973.15 and 4,179.19

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Solution

The fourth proportional to 6,647.26, 9,973.15 and 4,179.19 is: 6,270.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,647.26 : 9,973.15 = 4,179.19 : x
  2. Step 2: Convert to fraction form
    6,647.26/9,973.15 = 4,179.19/x
  3. Step 3: Cross multiply
    6,647.26x = 9,973.15 × 4,179.19
  4. Step 4: Simplify right side
    6,647.26x = 41,679,688.75
  5. Step 5: Solve for x
    x = 41,679,688.75/6,647.26
  6. Step 6: Final answer
    x = 6,270.21

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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.