Home / 18,187.96-25,110.92-12,455.01

Finding the Fourth Proportional to 18,187.96, 25,110.92 and 12,455.01

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Solution

The fourth proportional to 18,187.96, 25,110.92 and 12,455.01 is: 17,195.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,187.96 : 25,110.92 = 12,455.01 : x
  2. Step 2: Convert to fraction form
    18,187.96/25,110.92 = 12,455.01/x
  3. Step 3: Cross multiply
    18,187.96x = 25,110.92 × 12,455.01
  4. Step 4: Simplify right side
    18,187.96x = 312,756,759.71
  5. Step 5: Solve for x
    x = 312,756,759.71/18,187.96
  6. Step 6: Final answer
    x = 17,195.81

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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.