Home / 13,586.42-20,379.66-3,725.84

Finding the Fourth Proportional to 13,586.42, 20,379.66 and 3,725.84

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Solution

The fourth proportional to 13,586.42, 20,379.66 and 3,725.84 is: 5,588.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,586.42 : 20,379.66 = 3,725.84 : x
  2. Step 2: Convert to fraction form
    13,586.42/20,379.66 = 3,725.84/x
  3. Step 3: Cross multiply
    13,586.42x = 20,379.66 × 3,725.84
  4. Step 4: Simplify right side
    13,586.42x = 75,931,352.41
  5. Step 5: Solve for x
    x = 75,931,352.41/13,586.42
  6. Step 6: Final answer
    x = 5,588.77

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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.