Home / 13,892.09-19,168.11-8,228.61

Finding the Fourth Proportional to 13,892.09, 19,168.11 and 8,228.61

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Solution

The fourth proportional to 13,892.09, 19,168.11 and 8,228.61 is: 11,353.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,892.09 : 19,168.11 = 8,228.61 : x
  2. Step 2: Convert to fraction form
    13,892.09/19,168.11 = 8,228.61/x
  3. Step 3: Cross multiply
    13,892.09x = 19,168.11 × 8,228.61
  4. Step 4: Simplify right side
    13,892.09x = 157,726,901.63
  5. Step 5: Solve for x
    x = 157,726,901.63/13,892.09
  6. Step 6: Final answer
    x = 11,353.72

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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.