Home / 13,917.62-20,878.36-7,344.27

Finding the Fourth Proportional to 13,917.62, 20,878.36 and 7,344.27

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Solution

The fourth proportional to 13,917.62, 20,878.36 and 7,344.27 is: 11,017.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,917.62 : 20,878.36 = 7,344.27 : x
  2. Step 2: Convert to fraction form
    13,917.62/20,878.36 = 7,344.27/x
  3. Step 3: Cross multiply
    13,917.62x = 20,878.36 × 7,344.27
  4. Step 4: Simplify right side
    13,917.62x = 153,336,294.64
  5. Step 5: Solve for x
    x = 153,336,294.64/13,917.62
  6. Step 6: Final answer
    x = 11,017.42

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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.