Home / 8,661.40-12,984.35-3,395.18

Finding the Fourth Proportional to 8,661.40, 12,984.35 and 3,395.18

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Solution

The fourth proportional to 8,661.40, 12,984.35 and 3,395.18 is: 5,089.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,661.40 : 12,984.35 = 3,395.18 : x
  2. Step 2: Convert to fraction form
    8,661.40/12,984.35 = 3,395.18/x
  3. Step 3: Cross multiply
    8,661.40x = 12,984.35 × 3,395.18
  4. Step 4: Simplify right side
    8,661.40x = 44,084,205.43
  5. Step 5: Solve for x
    x = 44,084,205.43/8,661.40
  6. Step 6: Final answer
    x = 5,089.73

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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.