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Finding the Fourth Proportional to 8,267.31, 12,388.01 and 7,029.63

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Solution

The fourth proportional to 8,267.31, 12,388.01 and 7,029.63 is: 10,533.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,267.31 : 12,388.01 = 7,029.63 : x
  2. Step 2: Convert to fraction form
    8,267.31/12,388.01 = 7,029.63/x
  3. Step 3: Cross multiply
    8,267.31x = 12,388.01 × 7,029.63
  4. Step 4: Simplify right side
    8,267.31x = 87,083,091.59
  5. Step 5: Solve for x
    x = 87,083,091.59/8,267.31
  6. Step 6: Final answer
    x = 10,533.43

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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.