Home / 19,703.10-27,188.10-11,743.77

Finding the Fourth Proportional to 19,703.10, 27,188.10 and 11,743.77

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Solution

The fourth proportional to 19,703.10, 27,188.10 and 11,743.77 is: 16,205.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,703.10 : 27,188.10 = 11,743.77 : x
  2. Step 2: Convert to fraction form
    19,703.10/27,188.10 = 11,743.77/x
  3. Step 3: Cross multiply
    19,703.10x = 27,188.10 × 11,743.77
  4. Step 4: Simplify right side
    19,703.10x = 319,290,793.14
  5. Step 5: Solve for x
    x = 319,290,793.14/19,703.10
  6. Step 6: Final answer
    x = 16,205.10

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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.