Home / 12,115.22-16,714.26-8,936.07

Finding the Fourth Proportional to 12,115.22, 16,714.26 and 8,936.07

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Solution

The fourth proportional to 12,115.22, 16,714.26 and 8,936.07 is: 12,328.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,115.22 : 16,714.26 = 8,936.07 : x
  2. Step 2: Convert to fraction form
    12,115.22/16,714.26 = 8,936.07/x
  3. Step 3: Cross multiply
    12,115.22x = 16,714.26 × 8,936.07
  4. Step 4: Simplify right side
    12,115.22x = 149,359,828.70
  5. Step 5: Solve for x
    x = 149,359,828.70/12,115.22
  6. Step 6: Final answer
    x = 12,328.29

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1.5x scale

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.