Home / 14,120.81-21,181.01-3,447.30

Finding the Fourth Proportional to 14,120.81, 21,181.01 and 3,447.30

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Solution

The fourth proportional to 14,120.81, 21,181.01 and 3,447.30 is: 5,170.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,120.81 : 21,181.01 = 3,447.30 : x
  2. Step 2: Convert to fraction form
    14,120.81/21,181.01 = 3,447.30/x
  3. Step 3: Cross multiply
    14,120.81x = 21,181.01 × 3,447.30
  4. Step 4: Simplify right side
    14,120.81x = 73,017,278.54
  5. Step 5: Solve for x
    x = 73,017,278.54/14,120.81
  6. Step 6: Final answer
    x = 5,170.90

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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.