Home / 19,852.11-27,390.78-11,888.73

Finding the Fourth Proportional to 19,852.11, 27,390.78 and 11,888.73

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Solution

The fourth proportional to 19,852.11, 27,390.78 and 11,888.73 is: 16,403.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,852.11 : 27,390.78 = 11,888.73 : x
  2. Step 2: Convert to fraction form
    19,852.11/27,390.78 = 11,888.73/x
  3. Step 3: Cross multiply
    19,852.11x = 27,390.78 × 11,888.73
  4. Step 4: Simplify right side
    19,852.11x = 325,641,587.91
  5. Step 5: Solve for x
    x = 325,641,587.91/19,852.11
  6. Step 6: Final answer
    x = 16,403.37

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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.