Home / 7,785.16-11,683.66-6,243.78

Finding the Fourth Proportional to 7,785.16, 11,683.66 and 6,243.78

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Solution

The fourth proportional to 7,785.16, 11,683.66 and 6,243.78 is: 9,370.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,785.16 : 11,683.66 = 6,243.78 : x
  2. Step 2: Convert to fraction form
    7,785.16/11,683.66 = 6,243.78/x
  3. Step 3: Cross multiply
    7,785.16x = 11,683.66 × 6,243.78
  4. Step 4: Simplify right side
    7,785.16x = 72,950,202.63
  5. Step 5: Solve for x
    x = 72,950,202.63/7,785.16
  6. Step 6: Final answer
    x = 9,370.42

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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.