Home / 18,729.09-25,849.77-12,023.20

Finding the Fourth Proportional to 18,729.09, 25,849.77 and 12,023.20

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Solution

The fourth proportional to 18,729.09, 25,849.77 and 12,023.20 is: 16,594.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,729.09 : 25,849.77 = 12,023.20 : x
  2. Step 2: Convert to fraction form
    18,729.09/25,849.77 = 12,023.20/x
  3. Step 3: Cross multiply
    18,729.09x = 25,849.77 × 12,023.20
  4. Step 4: Simplify right side
    18,729.09x = 310,796,954.66
  5. Step 5: Solve for x
    x = 310,796,954.66/18,729.09
  6. Step 6: Final answer
    x = 16,594.34

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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.