Home / 14,067.36-21,103.20-12,317.76

Finding the Fourth Proportional to 14,067.36, 21,103.20 and 12,317.76

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Solution

The fourth proportional to 14,067.36, 21,103.20 and 12,317.76 is: 18,478.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,067.36 : 21,103.20 = 12,317.76 : x
  2. Step 2: Convert to fraction form
    14,067.36/21,103.20 = 12,317.76/x
  3. Step 3: Cross multiply
    14,067.36x = 21,103.20 × 12,317.76
  4. Step 4: Simplify right side
    14,067.36x = 259,944,152.83
  5. Step 5: Solve for x
    x = 259,944,152.83/14,067.36
  6. Step 6: Final answer
    x = 18,478.53

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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.