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Finding the Fourth Proportional to 8,648.28, 12,984.08 and 5,534.37

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Solution

The fourth proportional to 8,648.28, 12,984.08 and 5,534.37 is: 8,309.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,648.28 : 12,984.08 = 5,534.37 : x
  2. Step 2: Convert to fraction form
    8,648.28/12,984.08 = 5,534.37/x
  3. Step 3: Cross multiply
    8,648.28x = 12,984.08 × 5,534.37
  4. Step 4: Simplify right side
    8,648.28x = 71,858,637.91
  5. Step 5: Solve for x
    x = 71,858,637.91/8,648.28
  6. Step 6: Final answer
    x = 8,309.01

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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.