Home / 13,636.20-20,454.24-3,775.38

Finding the Fourth Proportional to 13,636.20, 20,454.24 and 3,775.38

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Solution

The fourth proportional to 13,636.20, 20,454.24 and 3,775.38 is: 5,663.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,636.20 : 20,454.24 = 3,775.38 : x
  2. Step 2: Convert to fraction form
    13,636.20/20,454.24 = 3,775.38/x
  3. Step 3: Cross multiply
    13,636.20x = 20,454.24 × 3,775.38
  4. Step 4: Simplify right side
    13,636.20x = 77,222,528.61
  5. Step 5: Solve for x
    x = 77,222,528.61/13,636.20
  6. Step 6: Final answer
    x = 5,663.05

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1.5x scale

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.