Home / 10,374.12-15,540.60-4,819.80

Finding the Fourth Proportional to 10,374.12, 15,540.60 and 4,819.80

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Solution

The fourth proportional to 10,374.12, 15,540.60 and 4,819.80 is: 7,220.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,374.12 : 15,540.60 = 4,819.80 : x
  2. Step 2: Convert to fraction form
    10,374.12/15,540.60 = 4,819.80/x
  3. Step 3: Cross multiply
    10,374.12x = 15,540.60 × 4,819.80
  4. Step 4: Simplify right side
    10,374.12x = 74,902,583.88
  5. Step 5: Solve for x
    x = 74,902,583.88/10,374.12
  6. Step 6: Final answer
    x = 7,220.14

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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.