Home / 14,514.40-21,739.20-11,209.60

Finding the Fourth Proportional to 14,514.40, 21,739.20 and 11,209.60

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Solution

The fourth proportional to 14,514.40, 21,739.20 and 11,209.60 is: 16,789.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,514.40 : 21,739.20 = 11,209.60 : x
  2. Step 2: Convert to fraction form
    14,514.40/21,739.20 = 11,209.60/x
  3. Step 3: Cross multiply
    14,514.40x = 21,739.20 × 11,209.60
  4. Step 4: Simplify right side
    14,514.40x = 243,687,736.32
  5. Step 5: Solve for x
    x = 243,687,736.32/14,514.40
  6. Step 6: Final answer
    x = 16,789.38

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1.5x scale

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.