Home / 13,865.58-19,134.54-7,896.12

Finding the Fourth Proportional to 13,865.58, 19,134.54 and 7,896.12

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Solution

The fourth proportional to 13,865.58, 19,134.54 and 7,896.12 is: 10,896.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,865.58 : 19,134.54 = 7,896.12 : x
  2. Step 2: Convert to fraction form
    13,865.58/19,134.54 = 7,896.12/x
  3. Step 3: Cross multiply
    13,865.58x = 19,134.54 × 7,896.12
  4. Step 4: Simplify right side
    13,865.58x = 151,088,623.98
  5. Step 5: Solve for x
    x = 151,088,623.98/13,865.58
  6. Step 6: Final answer
    x = 10,896.67

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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.