Home / 13,860.63-20,790.81-3,472.38

Finding the Fourth Proportional to 13,860.63, 20,790.81 and 3,472.38

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Solution

The fourth proportional to 13,860.63, 20,790.81 and 3,472.38 is: 5,208.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,860.63 : 20,790.81 = 3,472.38 : x
  2. Step 2: Convert to fraction form
    13,860.63/20,790.81 = 3,472.38/x
  3. Step 3: Cross multiply
    13,860.63x = 20,790.81 × 3,472.38
  4. Step 4: Simplify right side
    13,860.63x = 72,193,592.83
  5. Step 5: Solve for x
    x = 72,193,592.83/13,860.63
  6. Step 6: Final answer
    x = 5,208.54

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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.