Home / 19,120.35-28,648.15-11,709.33

Finding the Fourth Proportional to 19,120.35, 28,648.15 and 11,709.33

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Solution

The fourth proportional to 19,120.35, 28,648.15 and 11,709.33 is: 17,544.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,120.35 : 28,648.15 = 11,709.33 : x
  2. Step 2: Convert to fraction form
    19,120.35/28,648.15 = 11,709.33/x
  3. Step 3: Cross multiply
    19,120.35x = 28,648.15 × 11,709.33
  4. Step 4: Simplify right side
    19,120.35x = 335,450,642.24
  5. Step 5: Solve for x
    x = 335,450,642.24/19,120.35
  6. Step 6: Final answer
    x = 17,544.17

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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.