Home / 13,788.96-20,675.10-5,470.08

Finding the Fourth Proportional to 13,788.96, 20,675.10 and 5,470.08

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Solution

The fourth proportional to 13,788.96, 20,675.10 and 5,470.08 is: 8,201.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,788.96 : 20,675.10 = 5,470.08 : x
  2. Step 2: Convert to fraction form
    13,788.96/20,675.10 = 5,470.08/x
  3. Step 3: Cross multiply
    13,788.96x = 20,675.10 × 5,470.08
  4. Step 4: Simplify right side
    13,788.96x = 113,094,451.01
  5. Step 5: Solve for x
    x = 113,094,451.01/13,788.96
  6. Step 6: Final answer
    x = 8,201.81

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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.