Home / 18,238.79-25,165.24-11,068.54

Finding the Fourth Proportional to 18,238.79, 25,165.24 and 11,068.54

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Solution

The fourth proportional to 18,238.79, 25,165.24 and 11,068.54 is: 15,271.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,238.79 : 25,165.24 = 11,068.54 : x
  2. Step 2: Convert to fraction form
    18,238.79/25,165.24 = 11,068.54/x
  3. Step 3: Cross multiply
    18,238.79x = 25,165.24 × 11,068.54
  4. Step 4: Simplify right side
    18,238.79x = 278,542,519.65
  5. Step 5: Solve for x
    x = 278,542,519.65/18,238.79
  6. Step 6: Final answer
    x = 15,271.99

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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.