Home / 8,699.36-11,993.40-6,912.77

Finding the Fourth Proportional to 8,699.36, 11,993.40 and 6,912.77

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Solution

The fourth proportional to 8,699.36, 11,993.40 and 6,912.77 is: 9,530.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,699.36 : 11,993.40 = 6,912.77 : x
  2. Step 2: Convert to fraction form
    8,699.36/11,993.40 = 6,912.77/x
  3. Step 3: Cross multiply
    8,699.36x = 11,993.40 × 6,912.77
  4. Step 4: Simplify right side
    8,699.36x = 82,907,555.75
  5. Step 5: Solve for x
    x = 82,907,555.75/8,699.36
  6. Step 6: Final answer
    x = 9,530.31

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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.