Home / 13,853.13-19,097.07-11,021.57

Finding the Fourth Proportional to 13,853.13, 19,097.07 and 11,021.57

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Solution

The fourth proportional to 13,853.13, 19,097.07 and 11,021.57 is: 15,193.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,853.13 : 19,097.07 = 11,021.57 : x
  2. Step 2: Convert to fraction form
    13,853.13/19,097.07 = 11,021.57/x
  3. Step 3: Cross multiply
    13,853.13x = 19,097.07 × 11,021.57
  4. Step 4: Simplify right side
    13,853.13x = 210,479,628.60
  5. Step 5: Solve for x
    x = 210,479,628.60/13,853.13
  6. Step 6: Final answer
    x = 15,193.66

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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.