Home / 13,889.27-19,176.14-12,394.62

Finding the Fourth Proportional to 13,889.27, 19,176.14 and 12,394.62

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Solution

The fourth proportional to 13,889.27, 19,176.14 and 12,394.62 is: 17,112.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,889.27 : 19,176.14 = 12,394.62 : x
  2. Step 2: Convert to fraction form
    13,889.27/19,176.14 = 12,394.62/x
  3. Step 3: Cross multiply
    13,889.27x = 19,176.14 × 12,394.62
  4. Step 4: Simplify right side
    13,889.27x = 237,680,968.37
  5. Step 5: Solve for x
    x = 237,680,968.37/13,889.27
  6. Step 6: Final answer
    x = 17,112.56

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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.