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Finding the Fourth Proportional to 12,346.60, 18,519.90 and 12,273.70

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Solution

The fourth proportional to 12,346.60, 18,519.90 and 12,273.70 is: 18,410.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,346.60 : 18,519.90 = 12,273.70 : x
  2. Step 2: Convert to fraction form
    12,346.60/18,519.90 = 12,273.70/x
  3. Step 3: Cross multiply
    12,346.60x = 18,519.90 × 12,273.70
  4. Step 4: Simplify right side
    12,346.60x = 227,307,696.63
  5. Step 5: Solve for x
    x = 227,307,696.63/12,346.60
  6. Step 6: Final answer
    x = 18,410.55

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Similar ratio
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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.