Home / 18,896.28-26,076.90-10,512.78

Finding the Fourth Proportional to 18,896.28, 26,076.90 and 10,512.78

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Solution

The fourth proportional to 18,896.28, 26,076.90 and 10,512.78 is: 14,507.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,896.28 : 26,076.90 = 10,512.78 : x
  2. Step 2: Convert to fraction form
    18,896.28/26,076.90 = 10,512.78/x
  3. Step 3: Cross multiply
    18,896.28x = 26,076.90 × 10,512.78
  4. Step 4: Simplify right side
    18,896.28x = 274,140,712.78
  5. Step 5: Solve for x
    x = 274,140,712.78/18,896.28
  6. Step 6: Final answer
    x = 14,507.66

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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.