Home / 14,142.25-21,213.45-4,782.33

Finding the Fourth Proportional to 14,142.25, 21,213.45 and 4,782.33

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Solution

The fourth proportional to 14,142.25, 21,213.45 and 4,782.33 is: 7,173.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,142.25 : 21,213.45 = 4,782.33 : x
  2. Step 2: Convert to fraction form
    14,142.25/21,213.45 = 4,782.33/x
  3. Step 3: Cross multiply
    14,142.25x = 21,213.45 × 4,782.33
  4. Step 4: Simplify right side
    14,142.25x = 101,449,718.34
  5. Step 5: Solve for x
    x = 101,449,718.34/14,142.25
  6. Step 6: Final answer
    x = 7,173.52

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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.