Home / 12,310.75-18,450.72-5,282.47

Finding the Fourth Proportional to 12,310.75, 18,450.72 and 5,282.47

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Solution

The fourth proportional to 12,310.75, 18,450.72 and 5,282.47 is: 7,917.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,310.75 : 18,450.72 = 5,282.47 : x
  2. Step 2: Convert to fraction form
    12,310.75/18,450.72 = 5,282.47/x
  3. Step 3: Cross multiply
    12,310.75x = 18,450.72 × 5,282.47
  4. Step 4: Simplify right side
    12,310.75x = 97,465,374.88
  5. Step 5: Solve for x
    x = 97,465,374.88/12,310.75
  6. Step 6: Final answer
    x = 7,917.09

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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.