Home / 14,149.75-21,223.90-4,288.99

Finding the Fourth Proportional to 14,149.75, 21,223.90 and 4,288.99

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Solution

The fourth proportional to 14,149.75, 21,223.90 and 4,288.99 is: 6,433.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,149.75 : 21,223.90 = 4,288.99 : x
  2. Step 2: Convert to fraction form
    14,149.75/21,223.90 = 4,288.99/x
  3. Step 3: Cross multiply
    14,149.75x = 21,223.90 × 4,288.99
  4. Step 4: Simplify right side
    14,149.75x = 91,029,094.86
  5. Step 5: Solve for x
    x = 91,029,094.86/14,149.75
  6. Step 6: Final answer
    x = 6,433.27

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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.