Home / 10,311-15,474.70-3,739.06

Finding the Fourth Proportional to 10,311, 15,474.70 and 3,739.06

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Solution

The fourth proportional to 10,311, 15,474.70 and 3,739.06 is: 5,611.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,311 : 15,474.70 = 3,739.06 : x
  2. Step 2: Convert to fraction form
    10,311/15,474.70 = 3,739.06/x
  3. Step 3: Cross multiply
    10,311x = 15,474.70 × 3,739.06
  4. Step 4: Simplify right side
    10,311x = 57,860,831.78
  5. Step 5: Solve for x
    x = 57,860,831.78/10,311
  6. Step 6: Final answer
    x = 5,611.56

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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.