Home / 8,435.28-12,658.56-3,504.90

Finding the Fourth Proportional to 8,435.28, 12,658.56 and 3,504.90

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Solution

The fourth proportional to 8,435.28, 12,658.56 and 3,504.90 is: 5,259.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,435.28 : 12,658.56 = 3,504.90 : x
  2. Step 2: Convert to fraction form
    8,435.28/12,658.56 = 3,504.90/x
  3. Step 3: Cross multiply
    8,435.28x = 12,658.56 × 3,504.90
  4. Step 4: Simplify right side
    8,435.28x = 44,366,986.94
  5. Step 5: Solve for x
    x = 44,366,986.94/8,435.28
  6. Step 6: Final answer
    x = 5,259.69

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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.