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Finding the Fourth Proportional to 13,636.56, 20,454.96 and 4,402.56

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Solution

The fourth proportional to 13,636.56, 20,454.96 and 4,402.56 is: 6,603.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,636.56 : 20,454.96 = 4,402.56 : x
  2. Step 2: Convert to fraction form
    13,636.56/20,454.96 = 4,402.56/x
  3. Step 3: Cross multiply
    13,636.56x = 20,454.96 × 4,402.56
  4. Step 4: Simplify right side
    13,636.56x = 90,054,188.70
  5. Step 5: Solve for x
    x = 90,054,188.70/13,636.56
  6. Step 6: Final answer
    x = 6,603.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.