Home / 18,149.20-25,039.56-11,435.44

Finding the Fourth Proportional to 18,149.20, 25,039.56 and 11,435.44

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Solution

The fourth proportional to 18,149.20, 25,039.56 and 11,435.44 is: 15,776.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,149.20 : 25,039.56 = 11,435.44 : x
  2. Step 2: Convert to fraction form
    18,149.20/25,039.56 = 11,435.44/x
  3. Step 3: Cross multiply
    18,149.20x = 25,039.56 × 11,435.44
  4. Step 4: Simplify right side
    18,149.20x = 286,338,386.01
  5. Step 5: Solve for x
    x = 286,338,386.01/18,149.20
  6. Step 6: Final answer
    x = 15,776.92

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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.