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Finding the Fourth Proportional to 12,242.61, 16,894.45 and 6,939.14

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Solution

The fourth proportional to 12,242.61, 16,894.45 and 6,939.14 is: 9,575.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,242.61 : 16,894.45 = 6,939.14 : x
  2. Step 2: Convert to fraction form
    12,242.61/16,894.45 = 6,939.14/x
  3. Step 3: Cross multiply
    12,242.61x = 16,894.45 × 6,939.14
  4. Step 4: Simplify right side
    12,242.61x = 117,232,953.77
  5. Step 5: Solve for x
    x = 117,232,953.77/12,242.61
  6. Step 6: Final answer
    x = 9,575.81

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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.