Home / 14,028.72-21,039.44-4,165.76

Finding the Fourth Proportional to 14,028.72, 21,039.44 and 4,165.76

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Solution

The fourth proportional to 14,028.72, 21,039.44 and 4,165.76 is: 6,247.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,028.72 : 21,039.44 = 4,165.76 : x
  2. Step 2: Convert to fraction form
    14,028.72/21,039.44 = 4,165.76/x
  3. Step 3: Cross multiply
    14,028.72x = 21,039.44 × 4,165.76
  4. Step 4: Simplify right side
    14,028.72x = 87,645,257.57
  5. Step 5: Solve for x
    x = 87,645,257.57/14,028.72
  6. Step 6: Final answer
    x = 6,247.56

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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.