Home / 13,601.74-20,400.26-3,606.55

Finding the Fourth Proportional to 13,601.74, 20,400.26 and 3,606.55

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Solution

The fourth proportional to 13,601.74, 20,400.26 and 3,606.55 is: 5,409.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,601.74 : 20,400.26 = 3,606.55 : x
  2. Step 2: Convert to fraction form
    13,601.74/20,400.26 = 3,606.55/x
  3. Step 3: Cross multiply
    13,601.74x = 20,400.26 × 3,606.55
  4. Step 4: Simplify right side
    13,601.74x = 73,574,557.70
  5. Step 5: Solve for x
    x = 73,574,557.70/13,601.74
  6. Step 6: Final answer
    x = 5,409.20

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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.