Home / 12,558.28-18,834.84-11,933.80

Finding the Fourth Proportional to 12,558.28, 18,834.84 and 11,933.80

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Solution

The fourth proportional to 12,558.28, 18,834.84 and 11,933.80 is: 17,898.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,558.28 : 18,834.84 = 11,933.80 : x
  2. Step 2: Convert to fraction form
    12,558.28/18,834.84 = 11,933.80/x
  3. Step 3: Cross multiply
    12,558.28x = 18,834.84 × 11,933.80
  4. Step 4: Simplify right side
    12,558.28x = 224,771,213.59
  5. Step 5: Solve for x
    x = 224,771,213.59/12,558.28
  6. Step 6: Final answer
    x = 17,898.25

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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.