Home / 13,861.92-19,125.12-8,554.56

Finding the Fourth Proportional to 13,861.92, 19,125.12 and 8,554.56

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Solution

The fourth proportional to 13,861.92, 19,125.12 and 8,554.56 is: 11,802.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,861.92 : 19,125.12 = 8,554.56 : x
  2. Step 2: Convert to fraction form
    13,861.92/19,125.12 = 8,554.56/x
  3. Step 3: Cross multiply
    13,861.92x = 19,125.12 × 8,554.56
  4. Step 4: Simplify right side
    13,861.92x = 163,606,986.55
  5. Step 5: Solve for x
    x = 163,606,986.55/13,861.92
  6. Step 6: Final answer
    x = 11,802.62

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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.