Home / 18,886.91-26,081.33-12,184.16

Finding the Fourth Proportional to 18,886.91, 26,081.33 and 12,184.16

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Solution

The fourth proportional to 18,886.91, 26,081.33 and 12,184.16 is: 16,825.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,886.91 : 26,081.33 = 12,184.16 : x
  2. Step 2: Convert to fraction form
    18,886.91/26,081.33 = 12,184.16/x
  3. Step 3: Cross multiply
    18,886.91x = 26,081.33 × 12,184.16
  4. Step 4: Simplify right side
    18,886.91x = 317,778,906.41
  5. Step 5: Solve for x
    x = 317,778,906.41/18,886.91
  6. Step 6: Final answer
    x = 16,825.36

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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.