Home / 18,939.62-26,125.84-11,853.74

Finding the Fourth Proportional to 18,939.62, 26,125.84 and 11,853.74

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Solution

The fourth proportional to 18,939.62, 26,125.84 and 11,853.74 is: 16,351.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,939.62 : 26,125.84 = 11,853.74 : x
  2. Step 2: Convert to fraction form
    18,939.62/26,125.84 = 11,853.74/x
  3. Step 3: Cross multiply
    18,939.62x = 26,125.84 × 11,853.74
  4. Step 4: Simplify right side
    18,939.62x = 309,688,994.77
  5. Step 5: Solve for x
    x = 309,688,994.77/18,939.62
  6. Step 6: Final answer
    x = 16,351.38

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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.