Home / 13,864.92-19,129.26-8,557.56

Finding the Fourth Proportional to 13,864.92, 19,129.26 and 8,557.56

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Solution

The fourth proportional to 13,864.92, 19,129.26 and 8,557.56 is: 11,806.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,864.92 : 19,129.26 = 8,557.56 : x
  2. Step 2: Convert to fraction form
    13,864.92/19,129.26 = 8,557.56/x
  3. Step 3: Cross multiply
    13,864.92x = 19,129.26 × 8,557.56
  4. Step 4: Simplify right side
    13,864.92x = 163,699,790.21
  5. Step 5: Solve for x
    x = 163,699,790.21/13,864.92
  6. Step 6: Final answer
    x = 11,806.76

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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.