Home / 8,635.25-12,930.99-5,338.34

Finding the Fourth Proportional to 8,635.25, 12,930.99 and 5,338.34

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Solution

The fourth proportional to 8,635.25, 12,930.99 and 5,338.34 is: 7,993.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,635.25 : 12,930.99 = 5,338.34 : x
  2. Step 2: Convert to fraction form
    8,635.25/12,930.99 = 5,338.34/x
  3. Step 3: Cross multiply
    8,635.25x = 12,930.99 × 5,338.34
  4. Step 4: Simplify right side
    8,635.25x = 69,030,021.16
  5. Step 5: Solve for x
    x = 69,030,021.16/8,635.25
  6. Step 6: Final answer
    x = 7,993.99

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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.