Home / 14,076.85-21,115.32-4,216.18

Finding the Fourth Proportional to 14,076.85, 21,115.32 and 4,216.18

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Solution

The fourth proportional to 14,076.85, 21,115.32 and 4,216.18 is: 6,324.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,076.85 : 21,115.32 = 4,216.18 : x
  2. Step 2: Convert to fraction form
    14,076.85/21,115.32 = 4,216.18/x
  3. Step 3: Cross multiply
    14,076.85x = 21,115.32 × 4,216.18
  4. Step 4: Simplify right side
    14,076.85x = 89,025,989.88
  5. Step 5: Solve for x
    x = 89,025,989.88/14,076.85
  6. Step 6: Final answer
    x = 6,324.28

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1.5x scale

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.