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Finding the Fourth Proportional to 17,486.78, 26,215.59 and 8,709.62

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Solution

The fourth proportional to 17,486.78, 26,215.59 and 8,709.62 is: 13,057.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,486.78 : 26,215.59 = 8,709.62 : x
  2. Step 2: Convert to fraction form
    17,486.78/26,215.59 = 8,709.62/x
  3. Step 3: Cross multiply
    17,486.78x = 26,215.59 × 8,709.62
  4. Step 4: Simplify right side
    17,486.78x = 228,327,826.98
  5. Step 5: Solve for x
    x = 228,327,826.98/17,486.78
  6. Step 6: Final answer
    x = 13,057.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.