Home / 19,819.64-27,345.66-12,262.34

Finding the Fourth Proportional to 19,819.64, 27,345.66 and 12,262.34

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Solution

The fourth proportional to 19,819.64, 27,345.66 and 12,262.34 is: 16,918.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,819.64 : 27,345.66 = 12,262.34 : x
  2. Step 2: Convert to fraction form
    19,819.64/27,345.66 = 12,262.34/x
  3. Step 3: Cross multiply
    19,819.64x = 27,345.66 × 12,262.34
  4. Step 4: Simplify right side
    19,819.64x = 335,321,780.44
  5. Step 5: Solve for x
    x = 335,321,780.44/19,819.64
  6. Step 6: Final answer
    x = 16,918.66

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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.