Home / 13,928.22-19,178.91-12,036.33

Finding the Fourth Proportional to 13,928.22, 19,178.91 and 12,036.33

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Solution

The fourth proportional to 13,928.22, 19,178.91 and 12,036.33 is: 16,573.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,928.22 : 19,178.91 = 12,036.33 : x
  2. Step 2: Convert to fraction form
    13,928.22/19,178.91 = 12,036.33/x
  3. Step 3: Cross multiply
    13,928.22x = 19,178.91 × 12,036.33
  4. Step 4: Simplify right side
    13,928.22x = 230,843,689.80
  5. Step 5: Solve for x
    x = 230,843,689.80/13,928.22
  6. Step 6: Final answer
    x = 16,573.81

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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.