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Finding the Fourth Proportional to 17,904.65, 26,856.99 and 6,808.78

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Solution

The fourth proportional to 17,904.65, 26,856.99 and 6,808.78 is: 10,213.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,904.65 : 26,856.99 = 6,808.78 : x
  2. Step 2: Convert to fraction form
    17,904.65/26,856.99 = 6,808.78/x
  3. Step 3: Cross multiply
    17,904.65x = 26,856.99 × 6,808.78
  4. Step 4: Simplify right side
    17,904.65x = 182,863,269.23
  5. Step 5: Solve for x
    x = 182,863,269.23/17,904.65
  6. Step 6: Final answer
    x = 10,213.17

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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.