Home / 11,187.90-16,783.74-3,792.33

Finding the Fourth Proportional to 11,187.90, 16,783.74 and 3,792.33

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Solution

The fourth proportional to 11,187.90, 16,783.74 and 3,792.33 is: 5,689.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,187.90 : 16,783.74 = 3,792.33 : x
  2. Step 2: Convert to fraction form
    11,187.90/16,783.74 = 3,792.33/x
  3. Step 3: Cross multiply
    11,187.90x = 16,783.74 × 3,792.33
  4. Step 4: Simplify right side
    11,187.90x = 63,649,480.71
  5. Step 5: Solve for x
    x = 63,649,480.71/11,187.90
  6. Step 6: Final answer
    x = 5,689.14

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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.