Home / 18,934.32-28,416.06-8,553.36

Finding the Fourth Proportional to 18,934.32, 28,416.06 and 8,553.36

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Solution

The fourth proportional to 18,934.32, 28,416.06 and 8,553.36 is: 12,836.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,934.32 : 28,416.06 = 8,553.36 : x
  2. Step 2: Convert to fraction form
    18,934.32/28,416.06 = 8,553.36/x
  3. Step 3: Cross multiply
    18,934.32x = 28,416.06 × 8,553.36
  4. Step 4: Simplify right side
    18,934.32x = 243,052,790.96
  5. Step 5: Solve for x
    x = 243,052,790.96/18,934.32
  6. Step 6: Final answer
    x = 12,836.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.