Home / 13,457.11-20,186.69-4,097.92

Finding the Fourth Proportional to 13,457.11, 20,186.69 and 4,097.92

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Solution

The fourth proportional to 13,457.11, 20,186.69 and 4,097.92 is: 6,147.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,457.11 : 20,186.69 = 4,097.92 : x
  2. Step 2: Convert to fraction form
    13,457.11/20,186.69 = 4,097.92/x
  3. Step 3: Cross multiply
    13,457.11x = 20,186.69 × 4,097.92
  4. Step 4: Simplify right side
    13,457.11x = 82,723,476.16
  5. Step 5: Solve for x
    x = 82,723,476.16/13,457.11
  6. Step 6: Final answer
    x = 6,147.20

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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.