Home / 13,601.99-20,400.64-3,606.81

Finding the Fourth Proportional to 13,601.99, 20,400.64 and 3,606.81

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Solution

The fourth proportional to 13,601.99, 20,400.64 and 3,606.81 is: 5,409.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,601.99 : 20,400.64 = 3,606.81 : x
  2. Step 2: Convert to fraction form
    13,601.99/20,400.64 = 3,606.81/x
  3. Step 3: Cross multiply
    13,601.99x = 20,400.64 × 3,606.81
  4. Step 4: Simplify right side
    13,601.99x = 73,581,232.36
  5. Step 5: Solve for x
    x = 73,581,232.36/13,601.99
  6. Step 6: Final answer
    x = 5,409.59

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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.