Home / 13,561.20-20,334.78-4,794.84

Finding the Fourth Proportional to 13,561.20, 20,334.78 and 4,794.84

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Solution

The fourth proportional to 13,561.20, 20,334.78 and 4,794.84 is: 7,189.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,561.20 : 20,334.78 = 4,794.84 : x
  2. Step 2: Convert to fraction form
    13,561.20/20,334.78 = 4,794.84/x
  3. Step 3: Cross multiply
    13,561.20x = 20,334.78 × 4,794.84
  4. Step 4: Simplify right side
    13,561.20x = 97,502,016.54
  5. Step 5: Solve for x
    x = 97,502,016.54/13,561.20
  6. Step 6: Final answer
    x = 7,189.78

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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.