Home / 10,243.60-15,369.99-4,975.72

Finding the Fourth Proportional to 10,243.60, 15,369.99 and 4,975.72

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Solution

The fourth proportional to 10,243.60, 15,369.99 and 4,975.72 is: 7,465.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,243.60 : 15,369.99 = 4,975.72 : x
  2. Step 2: Convert to fraction form
    10,243.60/15,369.99 = 4,975.72/x
  3. Step 3: Cross multiply
    10,243.60x = 15,369.99 × 4,975.72
  4. Step 4: Simplify right side
    10,243.60x = 76,476,766.64
  5. Step 5: Solve for x
    x = 76,476,766.64/10,243.60
  6. Step 6: Final answer
    x = 7,465.81

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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.