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Finding the Fourth Proportional to 8,435.70, 12,650.34 and 3,368.34

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Solution

The fourth proportional to 8,435.70, 12,650.34 and 3,368.34 is: 5,051.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,435.70 : 12,650.34 = 3,368.34 : x
  2. Step 2: Convert to fraction form
    8,435.70/12,650.34 = 3,368.34/x
  3. Step 3: Cross multiply
    8,435.70x = 12,650.34 × 3,368.34
  4. Step 4: Simplify right side
    8,435.70x = 42,610,646.24
  5. Step 5: Solve for x
    x = 42,610,646.24/8,435.70
  6. Step 6: Final answer
    x = 5,051.23

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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.