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Finding the Fourth Proportional to 15,173.06, 20,938.84 and 8,800.85

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Solution

The fourth proportional to 15,173.06, 20,938.84 and 8,800.85 is: 12,145.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,173.06 : 20,938.84 = 8,800.85 : x
  2. Step 2: Convert to fraction form
    15,173.06/20,938.84 = 8,800.85/x
  3. Step 3: Cross multiply
    15,173.06x = 20,938.84 × 8,800.85
  4. Step 4: Simplify right side
    15,173.06x = 184,279,620.36
  5. Step 5: Solve for x
    x = 184,279,620.36/15,173.06
  6. Step 6: Final answer
    x = 12,145.19

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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.