Home / 6,369.21-9,550.71-1,986.66

Finding the Fourth Proportional to 6,369.21, 9,550.71 and 1,986.66

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Solution

The fourth proportional to 6,369.21, 9,550.71 and 1,986.66 is: 2,979.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,369.21 : 9,550.71 = 1,986.66 : x
  2. Step 2: Convert to fraction form
    6,369.21/9,550.71 = 1,986.66/x
  3. Step 3: Cross multiply
    6,369.21x = 9,550.71 × 1,986.66
  4. Step 4: Simplify right side
    6,369.21x = 18,974,013.53
  5. Step 5: Solve for x
    x = 18,974,013.53/6,369.21
  6. Step 6: Final answer
    x = 2,979.02

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1.5x scale

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.