Home / 12,115.14-16,719.09-6,664.44

Finding the Fourth Proportional to 12,115.14, 16,719.09 and 6,664.44

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Solution

The fourth proportional to 12,115.14, 16,719.09 and 6,664.44 is: 9,197.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,115.14 : 16,719.09 = 6,664.44 : x
  2. Step 2: Convert to fraction form
    12,115.14/16,719.09 = 6,664.44/x
  3. Step 3: Cross multiply
    12,115.14x = 16,719.09 × 6,664.44
  4. Step 4: Simplify right side
    12,115.14x = 111,423,372.16
  5. Step 5: Solve for x
    x = 111,423,372.16/12,115.14
  6. Step 6: Final answer
    x = 9,197.04

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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.