Home / 18,315.27-25,267.89-11,949.33

Finding the Fourth Proportional to 18,315.27, 25,267.89 and 11,949.33

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Solution

The fourth proportional to 18,315.27, 25,267.89 and 11,949.33 is: 16,485.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,315.27 : 25,267.89 = 11,949.33 : x
  2. Step 2: Convert to fraction form
    18,315.27/25,267.89 = 11,949.33/x
  3. Step 3: Cross multiply
    18,315.27x = 25,267.89 × 11,949.33
  4. Step 4: Simplify right side
    18,315.27x = 301,934,356.01
  5. Step 5: Solve for x
    x = 301,934,356.01/18,315.27
  6. Step 6: Final answer
    x = 16,485.39

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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.