Home / 13,819.65-20,723.40-5,496.90

Finding the Fourth Proportional to 13,819.65, 20,723.40 and 5,496.90

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Solution

The fourth proportional to 13,819.65, 20,723.40 and 5,496.90 is: 8,242.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,819.65 : 20,723.40 = 5,496.90 : x
  2. Step 2: Convert to fraction form
    13,819.65/20,723.40 = 5,496.90/x
  3. Step 3: Cross multiply
    13,819.65x = 20,723.40 × 5,496.90
  4. Step 4: Simplify right side
    13,819.65x = 113,914,457.46
  5. Step 5: Solve for x
    x = 113,914,457.46/13,819.65
  6. Step 6: Final answer
    x = 8,242.93

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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.