Home / 13,860.96-20,790.01-3,472.71

Finding the Fourth Proportional to 13,860.96, 20,790.01 and 3,472.71

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Solution

The fourth proportional to 13,860.96, 20,790.01 and 3,472.71 is: 5,208.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,860.96 : 20,790.01 = 3,472.71 : x
  2. Step 2: Convert to fraction form
    13,860.96/20,790.01 = 3,472.71/x
  3. Step 3: Cross multiply
    13,860.96x = 20,790.01 × 3,472.71
  4. Step 4: Simplify right side
    13,860.96x = 72,197,675.63
  5. Step 5: Solve for x
    x = 72,197,675.63/13,860.96
  6. Step 6: Final answer
    x = 5,208.71

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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.