Home / 18,731.97-25,852.10-11,561.45

Finding the Fourth Proportional to 18,731.97, 25,852.10 and 11,561.45

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Solution

The fourth proportional to 18,731.97, 25,852.10 and 11,561.45 is: 15,956.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,731.97 : 25,852.10 = 11,561.45 : x
  2. Step 2: Convert to fraction form
    18,731.97/25,852.10 = 11,561.45/x
  3. Step 3: Cross multiply
    18,731.97x = 25,852.10 × 11,561.45
  4. Step 4: Simplify right side
    18,731.97x = 298,887,574.48
  5. Step 5: Solve for x
    x = 298,887,574.48/18,731.97
  6. Step 6: Final answer
    x = 15,956.01

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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.