Home / 13,750.32-20,629.98-4,391.88

Finding the Fourth Proportional to 13,750.32, 20,629.98 and 4,391.88

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Solution

The fourth proportional to 13,750.32, 20,629.98 and 4,391.88 is: 6,589.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,750.32 : 20,629.98 = 4,391.88 : x
  2. Step 2: Convert to fraction form
    13,750.32/20,629.98 = 4,391.88/x
  3. Step 3: Cross multiply
    13,750.32x = 20,629.98 × 4,391.88
  4. Step 4: Simplify right side
    13,750.32x = 90,604,396.56
  5. Step 5: Solve for x
    x = 90,604,396.56/13,750.32
  6. Step 6: Final answer
    x = 6,589.26

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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.