Home / 13,190.59-19,788.84-4,425.28

Finding the Fourth Proportional to 13,190.59, 19,788.84 and 4,425.28

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Solution

The fourth proportional to 13,190.59, 19,788.84 and 4,425.28 is: 6,638.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,190.59 : 19,788.84 = 4,425.28 : x
  2. Step 2: Convert to fraction form
    13,190.59/19,788.84 = 4,425.28/x
  3. Step 3: Cross multiply
    13,190.59x = 19,788.84 × 4,425.28
  4. Step 4: Simplify right side
    13,190.59x = 87,571,157.88
  5. Step 5: Solve for x
    x = 87,571,157.88/13,190.59
  6. Step 6: Final answer
    x = 6,638.91

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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.