Home / 10,245.39-15,370.50-3,319.89

Finding the Fourth Proportional to 10,245.39, 15,370.50 and 3,319.89

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Solution

The fourth proportional to 10,245.39, 15,370.50 and 3,319.89 is: 4,980.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,245.39 : 15,370.50 = 3,319.89 : x
  2. Step 2: Convert to fraction form
    10,245.39/15,370.50 = 3,319.89/x
  3. Step 3: Cross multiply
    10,245.39x = 15,370.50 × 3,319.89
  4. Step 4: Simplify right side
    10,245.39x = 51,028,369.25
  5. Step 5: Solve for x
    x = 51,028,369.25/10,245.39
  6. Step 6: Final answer
    x = 4,980.62

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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.