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Finding the Fourth Proportional to 12,376, 17,079.96 and 6,788.08

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Solution

The fourth proportional to 12,376, 17,079.96 and 6,788.08 is: 9,368.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,376 : 17,079.96 = 6,788.08 : x
  2. Step 2: Convert to fraction form
    12,376/17,079.96 = 6,788.08/x
  3. Step 3: Cross multiply
    12,376x = 17,079.96 × 6,788.08
  4. Step 4: Simplify right side
    12,376x = 115,940,134.88
  5. Step 5: Solve for x
    x = 115,940,134.88/12,376
  6. Step 6: Final answer
    x = 9,368.14

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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.