Home / 8,762.08-13,135.20-3,211.48

Finding the Fourth Proportional to 8,762.08, 13,135.20 and 3,211.48

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Solution

The fourth proportional to 8,762.08, 13,135.20 and 3,211.48 is: 4,814.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,762.08 : 13,135.20 = 3,211.48 : x
  2. Step 2: Convert to fraction form
    8,762.08/13,135.20 = 3,211.48/x
  3. Step 3: Cross multiply
    8,762.08x = 13,135.20 × 3,211.48
  4. Step 4: Simplify right side
    8,762.08x = 42,183,432.10
  5. Step 5: Solve for x
    x = 42,183,432.10/8,762.08
  6. Step 6: Final answer
    x = 4,814.32

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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.