Home / 19,653.63-27,124.82-11,157.85

Finding the Fourth Proportional to 19,653.63, 27,124.82 and 11,157.85

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Solution

The fourth proportional to 19,653.63, 27,124.82 and 11,157.85 is: 15,399.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,653.63 : 27,124.82 = 11,157.85 : x
  2. Step 2: Convert to fraction form
    19,653.63/27,124.82 = 11,157.85/x
  3. Step 3: Cross multiply
    19,653.63x = 27,124.82 × 11,157.85
  4. Step 4: Simplify right side
    19,653.63x = 302,654,672.84
  5. Step 5: Solve for x
    x = 302,654,672.84/19,653.63
  6. Step 6: Final answer
    x = 15,399.43

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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.