Home / 13,427.76-20,136.44-4,540.72

Finding the Fourth Proportional to 13,427.76, 20,136.44 and 4,540.72

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Solution

The fourth proportional to 13,427.76, 20,136.44 and 4,540.72 is: 6,809.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,427.76 : 20,136.44 = 4,540.72 : x
  2. Step 2: Convert to fraction form
    13,427.76/20,136.44 = 4,540.72/x
  3. Step 3: Cross multiply
    13,427.76x = 20,136.44 × 4,540.72
  4. Step 4: Simplify right side
    13,427.76x = 91,433,959.73
  5. Step 5: Solve for x
    x = 91,433,959.73/13,427.76
  6. Step 6: Final answer
    x = 6,809.32

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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.