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Finding the Fourth Proportional to 8,991.21, 12,394.54 and 5,804.26

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Solution

The fourth proportional to 8,991.21, 12,394.54 and 5,804.26 is: 8,001.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,991.21 : 12,394.54 = 5,804.26 : x
  2. Step 2: Convert to fraction form
    8,991.21/12,394.54 = 5,804.26/x
  3. Step 3: Cross multiply
    8,991.21x = 12,394.54 × 5,804.26
  4. Step 4: Simplify right side
    8,991.21x = 71,941,076.36
  5. Step 5: Solve for x
    x = 71,941,076.36/8,991.21
  6. Step 6: Final answer
    x = 8,001.27

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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.