Home / 13,403.12-20,101.82-4,517.64

Finding the Fourth Proportional to 13,403.12, 20,101.82 and 4,517.64

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Solution

The fourth proportional to 13,403.12, 20,101.82 and 4,517.64 is: 6,775.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,403.12 : 20,101.82 = 4,517.64 : x
  2. Step 2: Convert to fraction form
    13,403.12/20,101.82 = 4,517.64/x
  3. Step 3: Cross multiply
    13,403.12x = 20,101.82 × 4,517.64
  4. Step 4: Simplify right side
    13,403.12x = 90,812,763.52
  5. Step 5: Solve for x
    x = 90,812,763.52/13,403.12
  6. Step 6: Final answer
    x = 6,775.50

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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.