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Finding the Fourth Proportional to 6,647.96, 9,966.36 and 2,485.64

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Solution

The fourth proportional to 6,647.96, 9,966.36 and 2,485.64 is: 3,726.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,647.96 : 9,966.36 = 2,485.64 : x
  2. Step 2: Convert to fraction form
    6,647.96/9,966.36 = 2,485.64/x
  3. Step 3: Cross multiply
    6,647.96x = 9,966.36 × 2,485.64
  4. Step 4: Simplify right side
    6,647.96x = 24,772,783.07
  5. Step 5: Solve for x
    x = 24,772,783.07/6,647.96
  6. Step 6: Final answer
    x = 3,726.37

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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.