Home / 13,806.78-20,697.75-5,035.56

Finding the Fourth Proportional to 13,806.78, 20,697.75 and 5,035.56

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Solution

The fourth proportional to 13,806.78, 20,697.75 and 5,035.56 is: 7,548.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,806.78 : 20,697.75 = 5,035.56 : x
  2. Step 2: Convert to fraction form
    13,806.78/20,697.75 = 5,035.56/x
  3. Step 3: Cross multiply
    13,806.78x = 20,697.75 × 5,035.56
  4. Step 4: Simplify right side
    13,806.78x = 104,224,761.99
  5. Step 5: Solve for x
    x = 104,224,761.99/13,806.78
  6. Step 6: Final answer
    x = 7,548.81

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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.