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Finding the Fourth Proportional to 26,698, 40,047 and 12,106

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Solution

The fourth proportional to 26,698, 40,047 and 12,106 is: 18,159

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,698 : 40,047 = 12,106 : x
  2. Step 2: Convert to fraction form
    26,698/40,047 = 12,106/x
  3. Step 3: Cross multiply
    26,698x = 40,047 × 12,106
  4. Step 4: Simplify right side
    26,698x = 484,808,982
  5. Step 5: Solve for x
    x = 484,808,982/26,698
  6. Step 6: Final answer
    x = 18,159

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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.