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Finding the Fourth Proportional to 8,840.36, 13,231.37 and 7,868.36

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Solution

The fourth proportional to 8,840.36, 13,231.37 and 7,868.36 is: 11,776.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,840.36 : 13,231.37 = 7,868.36 : x
  2. Step 2: Convert to fraction form
    8,840.36/13,231.37 = 7,868.36/x
  3. Step 3: Cross multiply
    8,840.36x = 13,231.37 × 7,868.36
  4. Step 4: Simplify right side
    8,840.36x = 104,109,182.45
  5. Step 5: Solve for x
    x = 104,109,182.45/8,840.36
  6. Step 6: Final answer
    x = 11,776.58

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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.