Home / 18,605.36-25,675.32-10,221.68

Finding the Fourth Proportional to 18,605.36, 25,675.32 and 10,221.68

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Solution

The fourth proportional to 18,605.36, 25,675.32 and 10,221.68 is: 14,105.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,605.36 : 25,675.32 = 10,221.68 : x
  2. Step 2: Convert to fraction form
    18,605.36/25,675.32 = 10,221.68/x
  3. Step 3: Cross multiply
    18,605.36x = 25,675.32 × 10,221.68
  4. Step 4: Simplify right side
    18,605.36x = 262,444,904.94
  5. Step 5: Solve for x
    x = 262,444,904.94/18,605.36
  6. Step 6: Final answer
    x = 14,105.88

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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.