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Finding the Fourth Proportional to 12,869.73, 17,760.08 and 7,204.39

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Solution

The fourth proportional to 12,869.73, 17,760.08 and 7,204.39 is: 9,941.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,869.73 : 17,760.08 = 7,204.39 : x
  2. Step 2: Convert to fraction form
    12,869.73/17,760.08 = 7,204.39/x
  3. Step 3: Cross multiply
    12,869.73x = 17,760.08 × 7,204.39
  4. Step 4: Simplify right side
    12,869.73x = 127,950,516.36
  5. Step 5: Solve for x
    x = 127,950,516.36/12,869.73
  6. Step 6: Final answer
    x = 9,941.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.