Home / 13,633.88-18,815.21-8,532.17

Finding the Fourth Proportional to 13,633.88, 18,815.21 and 8,532.17

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Solution

The fourth proportional to 13,633.88, 18,815.21 and 8,532.17 is: 11,774.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,633.88 : 18,815.21 = 8,532.17 : x
  2. Step 2: Convert to fraction form
    13,633.88/18,815.21 = 8,532.17/x
  3. Step 3: Cross multiply
    13,633.88x = 18,815.21 × 8,532.17
  4. Step 4: Simplify right side
    13,633.88x = 160,534,433.57
  5. Step 5: Solve for x
    x = 160,534,433.57/13,633.88
  6. Step 6: Final answer
    x = 11,774.67

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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.