Home / 6,469.90-9,688.65-4,266.70

Finding the Fourth Proportional to 6,469.90, 9,688.65 and 4,266.70

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Solution

The fourth proportional to 6,469.90, 9,688.65 and 4,266.70 is: 6,389.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,469.90 : 9,688.65 = 4,266.70 : x
  2. Step 2: Convert to fraction form
    6,469.90/9,688.65 = 4,266.70/x
  3. Step 3: Cross multiply
    6,469.90x = 9,688.65 × 4,266.70
  4. Step 4: Simplify right side
    6,469.90x = 41,338,562.96
  5. Step 5: Solve for x
    x = 41,338,562.96/6,469.90
  6. Step 6: Final answer
    x = 6,389.37

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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.