Home / 10,627.88-15,939.32-4,381.70

Finding the Fourth Proportional to 10,627.88, 15,939.32 and 4,381.70

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Solution

The fourth proportional to 10,627.88, 15,939.32 and 4,381.70 is: 6,571.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,627.88 : 15,939.32 = 4,381.70 : x
  2. Step 2: Convert to fraction form
    10,627.88/15,939.32 = 4,381.70/x
  3. Step 3: Cross multiply
    10,627.88x = 15,939.32 × 4,381.70
  4. Step 4: Simplify right side
    10,627.88x = 69,841,216.84
  5. Step 5: Solve for x
    x = 69,841,216.84/10,627.88
  6. Step 6: Final answer
    x = 6,571.51

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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.