Home / 13,486.76-20,229.90-5,164.52

Finding the Fourth Proportional to 13,486.76, 20,229.90 and 5,164.52

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Solution

The fourth proportional to 13,486.76, 20,229.90 and 5,164.52 is: 7,746.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,486.76 : 20,229.90 = 5,164.52 : x
  2. Step 2: Convert to fraction form
    13,486.76/20,229.90 = 5,164.52/x
  3. Step 3: Cross multiply
    13,486.76x = 20,229.90 × 5,164.52
  4. Step 4: Simplify right side
    13,486.76x = 104,477,723.15
  5. Step 5: Solve for x
    x = 104,477,723.15/13,486.76
  6. Step 6: Final answer
    x = 7,746.69

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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.