Home / 13,611.24-18,768.11-9,827.73

Finding the Fourth Proportional to 13,611.24, 18,768.11 and 9,827.73

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Solution

The fourth proportional to 13,611.24, 18,768.11 and 9,827.73 is: 13,551.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,611.24 : 18,768.11 = 9,827.73 : x
  2. Step 2: Convert to fraction form
    13,611.24/18,768.11 = 9,827.73/x
  3. Step 3: Cross multiply
    13,611.24x = 18,768.11 × 9,827.73
  4. Step 4: Simplify right side
    13,611.24x = 184,447,868.55
  5. Step 5: Solve for x
    x = 184,447,868.55/13,611.24
  6. Step 6: Final answer
    x = 13,551.14

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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.