Home / 13,756.43-20,640.12-6,364.37

Finding the Fourth Proportional to 13,756.43, 20,640.12 and 6,364.37

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Solution

The fourth proportional to 13,756.43, 20,640.12 and 6,364.37 is: 9,549.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,756.43 : 20,640.12 = 6,364.37 : x
  2. Step 2: Convert to fraction form
    13,756.43/20,640.12 = 6,364.37/x
  3. Step 3: Cross multiply
    13,756.43x = 20,640.12 × 6,364.37
  4. Step 4: Simplify right side
    13,756.43x = 131,361,388.26
  5. Step 5: Solve for x
    x = 131,361,388.26/13,756.43
  6. Step 6: Final answer
    x = 9,549.09

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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.