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Finding the Third Proportional to 6,981.19 and 10,859.06

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Solution

The third proportional to 6,981.19 and 10,859.06 is: 16,891.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,981.19 : 10,859.06 = 10,859.06 : x
  2. Step 2: Convert to fraction form
    6,981.19/10,859.06 = 10,859.06/x
  3. Step 3: Cross multiply
    6,981.19x = 10,859.06 × 10,859.06
  4. Step 4: Simplify right side
    6,981.19x = 117,919,238.38
  5. Step 5: Solve for x
    x = 117,919,238.38/6,981.19
  6. Step 6: Final answer
    x = 16,891.00

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.