Home / 13,861.94-19,129.45-7,893.61

Finding the Fourth Proportional to 13,861.94, 19,129.45 and 7,893.61

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Solution

The fourth proportional to 13,861.94, 19,129.45 and 7,893.61 is: 10,893.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,861.94 : 19,129.45 = 7,893.61 : x
  2. Step 2: Convert to fraction form
    13,861.94/19,129.45 = 7,893.61/x
  3. Step 3: Cross multiply
    13,861.94x = 19,129.45 × 7,893.61
  4. Step 4: Simplify right side
    13,861.94x = 151,000,389.72
  5. Step 5: Solve for x
    x = 151,000,389.72/13,861.94
  6. Step 6: Final answer
    x = 10,893.17

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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.