Home / 18,736.39-25,853.10-11,185.77

Finding the Fourth Proportional to 18,736.39, 25,853.10 and 11,185.77

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Solution

The fourth proportional to 18,736.39, 25,853.10 and 11,185.77 is: 15,434.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,736.39 : 25,853.10 = 11,185.77 : x
  2. Step 2: Convert to fraction form
    18,736.39/25,853.10 = 11,185.77/x
  3. Step 3: Cross multiply
    18,736.39x = 25,853.10 × 11,185.77
  4. Step 4: Simplify right side
    18,736.39x = 289,186,830.39
  5. Step 5: Solve for x
    x = 289,186,830.39/18,736.39
  6. Step 6: Final answer
    x = 15,434.50

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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.