Home / 13,719.06-20,583.99-12,629.34

Finding the Fourth Proportional to 13,719.06, 20,583.99 and 12,629.34

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Solution

The fourth proportional to 13,719.06, 20,583.99 and 12,629.34 is: 18,948.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,719.06 : 20,583.99 = 12,629.34 : x
  2. Step 2: Convert to fraction form
    13,719.06/20,583.99 = 12,629.34/x
  3. Step 3: Cross multiply
    13,719.06x = 20,583.99 × 12,629.34
  4. Step 4: Simplify right side
    13,719.06x = 259,962,208.27
  5. Step 5: Solve for x
    x = 259,962,208.27/13,719.06
  6. Step 6: Final answer
    x = 18,948.98

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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.