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Finding the Fourth Proportional to 8,699.44, 13,049.20 and 2,125.68

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Solution

The fourth proportional to 8,699.44, 13,049.20 and 2,125.68 is: 3,188.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,699.44 : 13,049.20 = 2,125.68 : x
  2. Step 2: Convert to fraction form
    8,699.44/13,049.20 = 2,125.68/x
  3. Step 3: Cross multiply
    8,699.44x = 13,049.20 × 2,125.68
  4. Step 4: Simplify right side
    8,699.44x = 27,738,423.46
  5. Step 5: Solve for x
    x = 27,738,423.46/8,699.44
  6. Step 6: Final answer
    x = 3,188.53

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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.