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Finding the Fourth Proportional to 8,804.37, 13,138.28 and 7,869.63

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Solution

The fourth proportional to 8,804.37, 13,138.28 and 7,869.63 is: 11,743.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,804.37 : 13,138.28 = 7,869.63 : x
  2. Step 2: Convert to fraction form
    8,804.37/13,138.28 = 7,869.63/x
  3. Step 3: Cross multiply
    8,804.37x = 13,138.28 × 7,869.63
  4. Step 4: Simplify right side
    8,804.37x = 103,393,402.44
  5. Step 5: Solve for x
    x = 103,393,402.44/8,804.37
  6. Step 6: Final answer
    x = 11,743.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.