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Finding the Fourth Proportional to 8,354.66, 12,533.40 and 2,808.54

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Solution

The fourth proportional to 8,354.66, 12,533.40 and 2,808.54 is: 4,213.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,354.66 : 12,533.40 = 2,808.54 : x
  2. Step 2: Convert to fraction form
    8,354.66/12,533.40 = 2,808.54/x
  3. Step 3: Cross multiply
    8,354.66x = 12,533.40 × 2,808.54
  4. Step 4: Simplify right side
    8,354.66x = 35,200,555.24
  5. Step 5: Solve for x
    x = 35,200,555.24/8,354.66
  6. Step 6: Final answer
    x = 4,213.28

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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.