Home / 13,788.56-20,670.48-5,463

Finding the Fourth Proportional to 13,788.56, 20,670.48 and 5,463

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Solution

The fourth proportional to 13,788.56, 20,670.48 and 5,463 is: 8,189.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,788.56 : 20,670.48 = 5,463 : x
  2. Step 2: Convert to fraction form
    13,788.56/20,670.48 = 5,463/x
  3. Step 3: Cross multiply
    13,788.56x = 20,670.48 × 5,463
  4. Step 4: Simplify right side
    13,788.56x = 112,922,832.24
  5. Step 5: Solve for x
    x = 112,922,832.24/13,788.56
  6. Step 6: Final answer
    x = 8,189.60

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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.