Home / 18,203.22-25,128.20-12,238.35

Finding the Fourth Proportional to 18,203.22, 25,128.20 and 12,238.35

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Solution

The fourth proportional to 18,203.22, 25,128.20 and 12,238.35 is: 16,894.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,203.22 : 25,128.20 = 12,238.35 : x
  2. Step 2: Convert to fraction form
    18,203.22/25,128.20 = 12,238.35/x
  3. Step 3: Cross multiply
    18,203.22x = 25,128.20 × 12,238.35
  4. Step 4: Simplify right side
    18,203.22x = 307,527,645.28
  5. Step 5: Solve for x
    x = 307,527,645.28/18,203.22
  6. Step 6: Final answer
    x = 16,894.13

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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.