Home / 18,711.36-25,819.92-11,632.32

Finding the Fourth Proportional to 18,711.36, 25,819.92 and 11,632.32

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Solution

The fourth proportional to 18,711.36, 25,819.92 and 11,632.32 is: 16,051.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711.36 : 25,819.92 = 11,632.32 : x
  2. Step 2: Convert to fraction form
    18,711.36/25,819.92 = 11,632.32/x
  3. Step 3: Cross multiply
    18,711.36x = 25,819.92 × 11,632.32
  4. Step 4: Simplify right side
    18,711.36x = 300,345,571.81
  5. Step 5: Solve for x
    x = 300,345,571.81/18,711.36
  6. Step 6: Final answer
    x = 16,051.51

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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.