Home / 10,420.84-15,625.14-4,183.81

Finding the Fourth Proportional to 10,420.84, 15,625.14 and 4,183.81

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Solution

The fourth proportional to 10,420.84, 15,625.14 and 4,183.81 is: 6,273.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,420.84 : 15,625.14 = 4,183.81 : x
  2. Step 2: Convert to fraction form
    10,420.84/15,625.14 = 4,183.81/x
  3. Step 3: Cross multiply
    10,420.84x = 15,625.14 × 4,183.81
  4. Step 4: Simplify right side
    10,420.84x = 65,372,562.23
  5. Step 5: Solve for x
    x = 65,372,562.23/10,420.84
  6. Step 6: Final answer
    x = 6,273.25

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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.