Home / 21,213.63-29,274.75-11,782.26

Finding the Fourth Proportional to 21,213.63, 29,274.75 and 11,782.26

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Solution

The fourth proportional to 21,213.63, 29,274.75 and 11,782.26 is: 16,259.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,213.63 : 29,274.75 = 11,782.26 : x
  2. Step 2: Convert to fraction form
    21,213.63/29,274.75 = 11,782.26/x
  3. Step 3: Cross multiply
    21,213.63x = 29,274.75 × 11,782.26
  4. Step 4: Simplify right side
    21,213.63x = 344,922,715.94
  5. Step 5: Solve for x
    x = 344,922,715.94/21,213.63
  6. Step 6: Final answer
    x = 16,259.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.