Home / 13,817.11-20,728.61-4,457.65

Finding the Fourth Proportional to 13,817.11, 20,728.61 and 4,457.65

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Solution

The fourth proportional to 13,817.11, 20,728.61 and 4,457.65 is: 6,687.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,817.11 : 20,728.61 = 4,457.65 : x
  2. Step 2: Convert to fraction form
    13,817.11/20,728.61 = 4,457.65/x
  3. Step 3: Cross multiply
    13,817.11x = 20,728.61 × 4,457.65
  4. Step 4: Simplify right side
    13,817.11x = 92,400,888.37
  5. Step 5: Solve for x
    x = 92,400,888.37/13,817.11
  6. Step 6: Final answer
    x = 6,687.43

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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.