Home / 18,939.76-26,138.04-10,441.84

Finding the Fourth Proportional to 18,939.76, 26,138.04 and 10,441.84

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Solution

The fourth proportional to 18,939.76, 26,138.04 and 10,441.84 is: 14,410.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,939.76 : 26,138.04 = 10,441.84 : x
  2. Step 2: Convert to fraction form
    18,939.76/26,138.04 = 10,441.84/x
  3. Step 3: Cross multiply
    18,939.76x = 26,138.04 × 10,441.84
  4. Step 4: Simplify right side
    18,939.76x = 272,929,231.59
  5. Step 5: Solve for x
    x = 272,929,231.59/18,939.76
  6. Step 6: Final answer
    x = 14,410.38

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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.