Home / 13,608.56-20,409.73-3,748.70

Finding the Fourth Proportional to 13,608.56, 20,409.73 and 3,748.70

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Solution

The fourth proportional to 13,608.56, 20,409.73 and 3,748.70 is: 5,622.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608.56 : 20,409.73 = 3,748.70 : x
  2. Step 2: Convert to fraction form
    13,608.56/20,409.73 = 3,748.70/x
  3. Step 3: Cross multiply
    13,608.56x = 20,409.73 × 3,748.70
  4. Step 4: Simplify right side
    13,608.56x = 76,509,834.06
  5. Step 5: Solve for x
    x = 76,509,834.06/13,608.56
  6. Step 6: Final answer
    x = 5,622.19

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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.