Home / 19,719.14-27,212.48-12,645.59

Finding the Fourth Proportional to 19,719.14, 27,212.48 and 12,645.59

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Solution

The fourth proportional to 19,719.14, 27,212.48 and 12,645.59 is: 17,450.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,719.14 : 27,212.48 = 12,645.59 : x
  2. Step 2: Convert to fraction form
    19,719.14/27,212.48 = 12,645.59/x
  3. Step 3: Cross multiply
    19,719.14x = 27,212.48 × 12,645.59
  4. Step 4: Simplify right side
    19,719.14x = 344,117,864.96
  5. Step 5: Solve for x
    x = 344,117,864.96/19,719.14
  6. Step 6: Final answer
    x = 17,450.96

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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.