Home / 13,026-17,971.56-8,311.80

Finding the Fourth Proportional to 13,026, 17,971.56 and 8,311.80

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Solution

The fourth proportional to 13,026, 17,971.56 and 8,311.80 is: 11,467.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,026 : 17,971.56 = 8,311.80 : x
  2. Step 2: Convert to fraction form
    13,026/17,971.56 = 8,311.80/x
  3. Step 3: Cross multiply
    13,026x = 17,971.56 × 8,311.80
  4. Step 4: Simplify right side
    13,026x = 149,376,012.41
  5. Step 5: Solve for x
    x = 149,376,012.41/13,026
  6. Step 6: Final answer
    x = 11,467.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.