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Finding the Fourth Proportional to 8,609.15, 12,904.52 and 4,448.05

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Solution

The fourth proportional to 8,609.15, 12,904.52 and 4,448.05 is: 6,667.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,609.15 : 12,904.52 = 4,448.05 : x
  2. Step 2: Convert to fraction form
    8,609.15/12,904.52 = 4,448.05/x
  3. Step 3: Cross multiply
    8,609.15x = 12,904.52 × 4,448.05
  4. Step 4: Simplify right side
    8,609.15x = 57,399,895.68
  5. Step 5: Solve for x
    x = 57,399,895.68/8,609.15
  6. Step 6: Final answer
    x = 6,667.31

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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.