Home / 13,845.75-20,768.43-6,446.07

Finding the Fourth Proportional to 13,845.75, 20,768.43 and 6,446.07

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Solution

The fourth proportional to 13,845.75, 20,768.43 and 6,446.07 is: 9,669.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,845.75 : 20,768.43 = 6,446.07 : x
  2. Step 2: Convert to fraction form
    13,845.75/20,768.43 = 6,446.07/x
  3. Step 3: Cross multiply
    13,845.75x = 20,768.43 × 6,446.07
  4. Step 4: Simplify right side
    13,845.75x = 133,874,753.57
  5. Step 5: Solve for x
    x = 133,874,753.57/13,845.75
  6. Step 6: Final answer
    x = 9,669.01

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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.