Home / 18,736.16-25,855.18-10,780.94

Finding the Fourth Proportional to 18,736.16, 25,855.18 and 10,780.94

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Solution

The fourth proportional to 18,736.16, 25,855.18 and 10,780.94 is: 14,877.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,736.16 : 25,855.18 = 10,780.94 : x
  2. Step 2: Convert to fraction form
    18,736.16/25,855.18 = 10,780.94/x
  3. Step 3: Cross multiply
    18,736.16x = 25,855.18 × 10,780.94
  4. Step 4: Simplify right side
    18,736.16x = 278,743,181.95
  5. Step 5: Solve for x
    x = 278,743,181.95/18,736.16
  6. Step 6: Final answer
    x = 14,877.29

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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.