Home / 13,675.54-20,513.01-3,814.55

Finding the Fourth Proportional to 13,675.54, 20,513.01 and 3,814.55

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Solution

The fourth proportional to 13,675.54, 20,513.01 and 3,814.55 is: 5,721.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,675.54 : 20,513.01 = 3,814.55 : x
  2. Step 2: Convert to fraction form
    13,675.54/20,513.01 = 3,814.55/x
  3. Step 3: Cross multiply
    13,675.54x = 20,513.01 × 3,814.55
  4. Step 4: Simplify right side
    13,675.54x = 78,247,902.30
  5. Step 5: Solve for x
    x = 78,247,902.30/13,675.54
  6. Step 6: Final answer
    x = 5,721.74

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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.