Home / 13,845.25-20,767.68-6,445.57

Finding the Fourth Proportional to 13,845.25, 20,767.68 and 6,445.57

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Solution

The fourth proportional to 13,845.25, 20,767.68 and 6,445.57 is: 9,668.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,845.25 : 20,767.68 = 6,445.57 : x
  2. Step 2: Convert to fraction form
    13,845.25/20,767.68 = 6,445.57/x
  3. Step 3: Cross multiply
    13,845.25x = 20,767.68 × 6,445.57
  4. Step 4: Simplify right side
    13,845.25x = 133,859,535.18
  5. Step 5: Solve for x
    x = 133,859,535.18/13,845.25
  6. Step 6: Final answer
    x = 9,668.26

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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.