Home / 13,696.68-18,933.30-12,219.24

Finding the Fourth Proportional to 13,696.68, 18,933.30 and 12,219.24

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Solution

The fourth proportional to 13,696.68, 18,933.30 and 12,219.24 is: 16,890.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,696.68 : 18,933.30 = 12,219.24 : x
  2. Step 2: Convert to fraction form
    13,696.68/18,933.30 = 12,219.24/x
  3. Step 3: Cross multiply
    13,696.68x = 18,933.30 × 12,219.24
  4. Step 4: Simplify right side
    13,696.68x = 231,350,536.69
  5. Step 5: Solve for x
    x = 231,350,536.69/13,696.68
  6. Step 6: Final answer
    x = 16,890.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.