Home / 13,429.96-20,137.73-11,873.68

Finding the Fourth Proportional to 13,429.96, 20,137.73 and 11,873.68

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Solution

The fourth proportional to 13,429.96, 20,137.73 and 11,873.68 is: 17,804.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,429.96 : 20,137.73 = 11,873.68 : x
  2. Step 2: Convert to fraction form
    13,429.96/20,137.73 = 11,873.68/x
  3. Step 3: Cross multiply
    13,429.96x = 20,137.73 × 11,873.68
  4. Step 4: Simplify right side
    13,429.96x = 239,108,961.95
  5. Step 5: Solve for x
    x = 239,108,961.95/13,429.96
  6. Step 6: Final answer
    x = 17,804.15

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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.