Home / 18,389.93-27,587.39-5,905.80

Finding the Fourth Proportional to 18,389.93, 27,587.39 and 5,905.80

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Solution

The fourth proportional to 18,389.93, 27,587.39 and 5,905.80 is: 8,859.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,389.93 : 27,587.39 = 5,905.80 : x
  2. Step 2: Convert to fraction form
    18,389.93/27,587.39 = 5,905.80/x
  3. Step 3: Cross multiply
    18,389.93x = 27,587.39 × 5,905.80
  4. Step 4: Simplify right side
    18,389.93x = 162,925,578.33
  5. Step 5: Solve for x
    x = 162,925,578.33/18,389.93
  6. Step 6: Final answer
    x = 8,859.50

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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.