Home / 17,981.94-26,971.74-8,628.60

Finding the Fourth Proportional to 17,981.94, 26,971.74 and 8,628.60

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Solution

The fourth proportional to 17,981.94, 26,971.74 and 8,628.60 is: 12,942.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,981.94 : 26,971.74 = 8,628.60 : x
  2. Step 2: Convert to fraction form
    17,981.94/26,971.74 = 8,628.60/x
  3. Step 3: Cross multiply
    17,981.94x = 26,971.74 × 8,628.60
  4. Step 4: Simplify right side
    17,981.94x = 232,728,355.76
  5. Step 5: Solve for x
    x = 232,728,355.76/17,981.94
  6. Step 6: Final answer
    x = 12,942.34

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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.