Home / 9,288.72-13,920.44-5,122.48

Finding the Fourth Proportional to 9,288.72, 13,920.44 and 5,122.48

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Solution

The fourth proportional to 9,288.72, 13,920.44 and 5,122.48 is: 7,676.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,288.72 : 13,920.44 = 5,122.48 : x
  2. Step 2: Convert to fraction form
    9,288.72/13,920.44 = 5,122.48/x
  3. Step 3: Cross multiply
    9,288.72x = 13,920.44 × 5,122.48
  4. Step 4: Simplify right side
    9,288.72x = 71,307,175.49
  5. Step 5: Solve for x
    x = 71,307,175.49/9,288.72
  6. Step 6: Final answer
    x = 7,676.75

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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.