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Finding the Fourth Proportional to 8,604.93, 12,905.86 and 5,475.65

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Solution

The fourth proportional to 8,604.93, 12,905.86 and 5,475.65 is: 8,212.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,604.93 : 12,905.86 = 5,475.65 : x
  2. Step 2: Convert to fraction form
    8,604.93/12,905.86 = 5,475.65/x
  3. Step 3: Cross multiply
    8,604.93x = 12,905.86 × 5,475.65
  4. Step 4: Simplify right side
    8,604.93x = 70,667,940.04
  5. Step 5: Solve for x
    x = 70,667,940.04/8,604.93
  6. Step 6: Final answer
    x = 8,212.49

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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.