Home / 9,106.45-13,661.73-2,781.90

Finding the Fourth Proportional to 9,106.45, 13,661.73 and 2,781.90

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Solution

The fourth proportional to 9,106.45, 13,661.73 and 2,781.90 is: 4,173.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,106.45 : 13,661.73 = 2,781.90 : x
  2. Step 2: Convert to fraction form
    9,106.45/13,661.73 = 2,781.90/x
  3. Step 3: Cross multiply
    9,106.45x = 13,661.73 × 2,781.90
  4. Step 4: Simplify right side
    9,106.45x = 38,005,566.69
  5. Step 5: Solve for x
    x = 38,005,566.69/9,106.45
  6. Step 6: Final answer
    x = 4,173.48

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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.