Home / 13,190.70-19,788.62-4,308.51

Finding the Fourth Proportional to 13,190.70, 19,788.62 and 4,308.51

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Solution

The fourth proportional to 13,190.70, 19,788.62 and 4,308.51 is: 6,463.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,190.70 : 19,788.62 = 4,308.51 : x
  2. Step 2: Convert to fraction form
    13,190.70/19,788.62 = 4,308.51/x
  3. Step 3: Cross multiply
    13,190.70x = 19,788.62 × 4,308.51
  4. Step 4: Simplify right side
    13,190.70x = 85,259,445.61
  5. Step 5: Solve for x
    x = 85,259,445.61/13,190.70
  6. Step 6: Final answer
    x = 6,463.60

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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.