Home / 13,927.62-20,878.11-5,160.18

Finding the Fourth Proportional to 13,927.62, 20,878.11 and 5,160.18

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Solution

The fourth proportional to 13,927.62, 20,878.11 and 5,160.18 is: 7,735.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,927.62 : 20,878.11 = 5,160.18 : x
  2. Step 2: Convert to fraction form
    13,927.62/20,878.11 = 5,160.18/x
  3. Step 3: Cross multiply
    13,927.62x = 20,878.11 × 5,160.18
  4. Step 4: Simplify right side
    13,927.62x = 107,734,805.66
  5. Step 5: Solve for x
    x = 107,734,805.66/13,927.62
  6. Step 6: Final answer
    x = 7,735.33

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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.