Home / 13,491.12-20,245.32-6,561.84

Finding the Fourth Proportional to 13,491.12, 20,245.32 and 6,561.84

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Solution

The fourth proportional to 13,491.12, 20,245.32 and 6,561.84 is: 9,846.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,491.12 : 20,245.32 = 6,561.84 : x
  2. Step 2: Convert to fraction form
    13,491.12/20,245.32 = 6,561.84/x
  3. Step 3: Cross multiply
    13,491.12x = 20,245.32 × 6,561.84
  4. Step 4: Simplify right side
    13,491.12x = 132,846,550.59
  5. Step 5: Solve for x
    x = 132,846,550.59/13,491.12
  6. Step 6: Final answer
    x = 9,846.96

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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.