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Finding the Fourth Proportional to 17,927.19, 26,890.78 and 5,447.17

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Solution

The fourth proportional to 17,927.19, 26,890.78 and 5,447.17 is: 8,170.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,927.19 : 26,890.78 = 5,447.17 : x
  2. Step 2: Convert to fraction form
    17,927.19/26,890.78 = 5,447.17/x
  3. Step 3: Cross multiply
    17,927.19x = 26,890.78 × 5,447.17
  4. Step 4: Simplify right side
    17,927.19x = 146,478,650.09
  5. Step 5: Solve for x
    x = 146,478,650.09/17,927.19
  6. Step 6: Final answer
    x = 8,170.75

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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.