Home / 13,572.63-20,357.99-4,212.42

Finding the Fourth Proportional to 13,572.63, 20,357.99 and 4,212.42

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Solution

The fourth proportional to 13,572.63, 20,357.99 and 4,212.42 is: 6,318.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,572.63 : 20,357.99 = 4,212.42 : x
  2. Step 2: Convert to fraction form
    13,572.63/20,357.99 = 4,212.42/x
  3. Step 3: Cross multiply
    13,572.63x = 20,357.99 × 4,212.42
  4. Step 4: Simplify right side
    13,572.63x = 85,756,383.17
  5. Step 5: Solve for x
    x = 85,756,383.17/13,572.63
  6. Step 6: Final answer
    x = 6,318.33

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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.