Home / 13,777.33-19,017.02-8,111.63

Finding the Fourth Proportional to 13,777.33, 19,017.02 and 8,111.63

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Solution

The fourth proportional to 13,777.33, 19,017.02 and 8,111.63 is: 11,196.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,777.33 : 19,017.02 = 8,111.63 : x
  2. Step 2: Convert to fraction form
    13,777.33/19,017.02 = 8,111.63/x
  3. Step 3: Cross multiply
    13,777.33x = 19,017.02 × 8,111.63
  4. Step 4: Simplify right side
    13,777.33x = 154,259,029.94
  5. Step 5: Solve for x
    x = 154,259,029.94/13,777.33
  6. Step 6: Final answer
    x = 11,196.58

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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.