Home / 14,072.85-21,109.32-4,212.18

Finding the Fourth Proportional to 14,072.85, 21,109.32 and 4,212.18

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Solution

The fourth proportional to 14,072.85, 21,109.32 and 4,212.18 is: 6,318.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,072.85 : 21,109.32 = 4,212.18 : x
  2. Step 2: Convert to fraction form
    14,072.85/21,109.32 = 4,212.18/x
  3. Step 3: Cross multiply
    14,072.85x = 21,109.32 × 4,212.18
  4. Step 4: Simplify right side
    14,072.85x = 88,916,255.52
  5. Step 5: Solve for x
    x = 88,916,255.52/14,072.85
  6. Step 6: Final answer
    x = 6,318.28

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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.