Home / 13,824.20-19,103.21-11,779.02

Finding the Fourth Proportional to 13,824.20, 19,103.21 and 11,779.02

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Solution

The fourth proportional to 13,824.20, 19,103.21 and 11,779.02 is: 16,277.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,824.20 : 19,103.21 = 11,779.02 : x
  2. Step 2: Convert to fraction form
    13,824.20/19,103.21 = 11,779.02/x
  3. Step 3: Cross multiply
    13,824.20x = 19,103.21 × 11,779.02
  4. Step 4: Simplify right side
    13,824.20x = 225,017,077.93
  5. Step 5: Solve for x
    x = 225,017,077.93/13,824.20
  6. Step 6: Final answer
    x = 16,277.04

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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.