Home / 18,637.88-25,728.84-11,568.47

Finding the Fourth Proportional to 18,637.88, 25,728.84 and 11,568.47

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Solution

The fourth proportional to 18,637.88, 25,728.84 and 11,568.47 is: 15,969.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,637.88 : 25,728.84 = 11,568.47 : x
  2. Step 2: Convert to fraction form
    18,637.88/25,728.84 = 11,568.47/x
  3. Step 3: Cross multiply
    18,637.88x = 25,728.84 × 11,568.47
  4. Step 4: Simplify right side
    18,637.88x = 297,643,185.03
  5. Step 5: Solve for x
    x = 297,643,185.03/18,637.88
  6. Step 6: Final answer
    x = 15,969.80

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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.