Home / 14,121.57-21,181.82-4,260.59

Finding the Fourth Proportional to 14,121.57, 21,181.82 and 4,260.59

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Solution

The fourth proportional to 14,121.57, 21,181.82 and 4,260.59 is: 6,390.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.57 : 21,181.82 = 4,260.59 : x
  2. Step 2: Convert to fraction form
    14,121.57/21,181.82 = 4,260.59/x
  3. Step 3: Cross multiply
    14,121.57x = 21,181.82 × 4,260.59
  4. Step 4: Simplify right side
    14,121.57x = 90,247,002.69
  5. Step 5: Solve for x
    x = 90,247,002.69/14,121.57
  6. Step 6: Final answer
    x = 6,390.72

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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.