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Finding the Fourth Proportional to 12,487.73, 17,207.11 and 8,501.93

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Solution

The fourth proportional to 12,487.73, 17,207.11 and 8,501.93 is: 11,714.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,487.73 : 17,207.11 = 8,501.93 : x
  2. Step 2: Convert to fraction form
    12,487.73/17,207.11 = 8,501.93/x
  3. Step 3: Cross multiply
    12,487.73x = 17,207.11 × 8,501.93
  4. Step 4: Simplify right side
    12,487.73x = 146,293,644.72
  5. Step 5: Solve for x
    x = 146,293,644.72/12,487.73
  6. Step 6: Final answer
    x = 11,714.99

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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.