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Finding the Fourth Proportional to 12,351.60, 18,511.02 and 6,512.34

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Solution

The fourth proportional to 12,351.60, 18,511.02 and 6,512.34 is: 9,759.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,351.60 : 18,511.02 = 6,512.34 : x
  2. Step 2: Convert to fraction form
    12,351.60/18,511.02 = 6,512.34/x
  3. Step 3: Cross multiply
    12,351.60x = 18,511.02 × 6,512.34
  4. Step 4: Simplify right side
    12,351.60x = 120,550,055.99
  5. Step 5: Solve for x
    x = 120,550,055.99/12,351.60
  6. Step 6: Final answer
    x = 9,759.87

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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.