Home / 18,795.20-25,919.48-11,240.32

Finding the Fourth Proportional to 18,795.20, 25,919.48 and 11,240.32

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Solution

The fourth proportional to 18,795.20, 25,919.48 and 11,240.32 is: 15,500.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,795.20 : 25,919.48 = 11,240.32 : x
  2. Step 2: Convert to fraction form
    18,795.20/25,919.48 = 11,240.32/x
  3. Step 3: Cross multiply
    18,795.20x = 25,919.48 × 11,240.32
  4. Step 4: Simplify right side
    18,795.20x = 291,343,249.43
  5. Step 5: Solve for x
    x = 291,343,249.43/18,795.20
  6. Step 6: Final answer
    x = 15,500.94

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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.