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Finding the Fourth Proportional to 8,435.40, 12,656.70 and 4,050.60

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Solution

The fourth proportional to 8,435.40, 12,656.70 and 4,050.60 is: 6,077.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,435.40 : 12,656.70 = 4,050.60 : x
  2. Step 2: Convert to fraction form
    8,435.40/12,656.70 = 4,050.60/x
  3. Step 3: Cross multiply
    8,435.40x = 12,656.70 × 4,050.60
  4. Step 4: Simplify right side
    8,435.40x = 51,267,229.02
  5. Step 5: Solve for x
    x = 51,267,229.02/8,435.40
  6. Step 6: Final answer
    x = 6,077.63

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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.