Home / 12,187.91-18,279.54-5,941.64

Finding the Fourth Proportional to 12,187.91, 18,279.54 and 5,941.64

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Solution

The fourth proportional to 12,187.91, 18,279.54 and 5,941.64 is: 8,911.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,187.91 : 18,279.54 = 5,941.64 : x
  2. Step 2: Convert to fraction form
    12,187.91/18,279.54 = 5,941.64/x
  3. Step 3: Cross multiply
    12,187.91x = 18,279.54 × 5,941.64
  4. Step 4: Simplify right side
    12,187.91x = 108,610,446.05
  5. Step 5: Solve for x
    x = 108,610,446.05/12,187.91
  6. Step 6: Final answer
    x = 8,911.33

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1.5x scale

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.