Home / 6,868.12-9,477.86-3,883.56

Finding the Fourth Proportional to 6,868.12, 9,477.86 and 3,883.56

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Solution

The fourth proportional to 6,868.12, 9,477.86 and 3,883.56 is: 5,359.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,868.12 : 9,477.86 = 3,883.56 : x
  2. Step 2: Convert to fraction form
    6,868.12/9,477.86 = 3,883.56/x
  3. Step 3: Cross multiply
    6,868.12x = 9,477.86 × 3,883.56
  4. Step 4: Simplify right side
    6,868.12x = 36,807,837.98
  5. Step 5: Solve for x
    x = 36,807,837.98/6,868.12
  6. Step 6: Final answer
    x = 5,359.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.