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Finding the Fourth Proportional to 8,609.49, 12,893.46 and 4,900.47

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Solution

The fourth proportional to 8,609.49, 12,893.46 and 4,900.47 is: 7,338.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,609.49 : 12,893.46 = 4,900.47 : x
  2. Step 2: Convert to fraction form
    8,609.49/12,893.46 = 4,900.47/x
  3. Step 3: Cross multiply
    8,609.49x = 12,893.46 × 4,900.47
  4. Step 4: Simplify right side
    8,609.49x = 63,184,013.93
  5. Step 5: Solve for x
    x = 63,184,013.93/8,609.49
  6. Step 6: Final answer
    x = 7,338.88

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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.