Home / 14,008.37-21,012.30-3,478.42

Finding the Fourth Proportional to 14,008.37, 21,012.30 and 3,478.42

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Solution

The fourth proportional to 14,008.37, 21,012.30 and 3,478.42 is: 5,217.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,008.37 : 21,012.30 = 3,478.42 : x
  2. Step 2: Convert to fraction form
    14,008.37/21,012.30 = 3,478.42/x
  3. Step 3: Cross multiply
    14,008.37x = 21,012.30 × 3,478.42
  4. Step 4: Simplify right side
    14,008.37x = 73,089,604.57
  5. Step 5: Solve for x
    x = 73,089,604.57/14,008.37
  6. Step 6: Final answer
    x = 5,217.57

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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.