Home / 13,712.55-20,567.21-3,852.66

Finding the Fourth Proportional to 13,712.55, 20,567.21 and 3,852.66

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Solution

The fourth proportional to 13,712.55, 20,567.21 and 3,852.66 is: 5,778.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,712.55 : 20,567.21 = 3,852.66 : x
  2. Step 2: Convert to fraction form
    13,712.55/20,567.21 = 3,852.66/x
  3. Step 3: Cross multiply
    13,712.55x = 20,567.21 × 3,852.66
  4. Step 4: Simplify right side
    13,712.55x = 79,238,467.28
  5. Step 5: Solve for x
    x = 79,238,467.28/13,712.55
  6. Step 6: Final answer
    x = 5,778.54

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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.