Home / 14,255.21-21,388.85-7,673.70

Finding the Fourth Proportional to 14,255.21, 21,388.85 and 7,673.70

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Solution

The fourth proportional to 14,255.21, 21,388.85 and 7,673.70 is: 11,513.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,255.21 : 21,388.85 = 7,673.70 : x
  2. Step 2: Convert to fraction form
    14,255.21/21,388.85 = 7,673.70/x
  3. Step 3: Cross multiply
    14,255.21x = 21,388.85 × 7,673.70
  4. Step 4: Simplify right side
    14,255.21x = 164,131,579.88
  5. Step 5: Solve for x
    x = 164,131,579.88/14,255.21
  6. Step 6: Final answer
    x = 11,513.80

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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.