Home / 18,619.35-25,690.41-11,542.38

Finding the Fourth Proportional to 18,619.35, 25,690.41 and 11,542.38

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Solution

The fourth proportional to 18,619.35, 25,690.41 and 11,542.38 is: 15,925.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,619.35 : 25,690.41 = 11,542.38 : x
  2. Step 2: Convert to fraction form
    18,619.35/25,690.41 = 11,542.38/x
  3. Step 3: Cross multiply
    18,619.35x = 25,690.41 × 11,542.38
  4. Step 4: Simplify right side
    18,619.35x = 296,528,474.58
  5. Step 5: Solve for x
    x = 296,528,474.58/18,619.35
  6. Step 6: Final answer
    x = 15,925.82

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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.