Home / 12,943.36-17,851.84-11,153.80

Finding the Fourth Proportional to 12,943.36, 17,851.84 and 11,153.80

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Solution

The fourth proportional to 12,943.36, 17,851.84 and 11,153.80 is: 15,383.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,943.36 : 17,851.84 = 11,153.80 : x
  2. Step 2: Convert to fraction form
    12,943.36/17,851.84 = 11,153.80/x
  3. Step 3: Cross multiply
    12,943.36x = 17,851.84 × 11,153.80
  4. Step 4: Simplify right side
    12,943.36x = 199,115,852.99
  5. Step 5: Solve for x
    x = 199,115,852.99/12,943.36
  6. Step 6: Final answer
    x = 15,383.63

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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.