Home / 18,376.35-27,578.40-13,458.74

Finding the Fourth Proportional to 18,376.35, 27,578.40 and 13,458.74

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Solution

The fourth proportional to 18,376.35, 27,578.40 and 13,458.74 is: 20,198.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,376.35 : 27,578.40 = 13,458.74 : x
  2. Step 2: Convert to fraction form
    18,376.35/27,578.40 = 13,458.74/x
  3. Step 3: Cross multiply
    18,376.35x = 27,578.40 × 13,458.74
  4. Step 4: Simplify right side
    18,376.35x = 371,170,377.32
  5. Step 5: Solve for x
    x = 371,170,377.32/18,376.35
  6. Step 6: Final answer
    x = 20,198.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.