Home / 12,321.54-18,485.55-5,744.34

Finding the Fourth Proportional to 12,321.54, 18,485.55 and 5,744.34

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Solution

The fourth proportional to 12,321.54, 18,485.55 and 5,744.34 is: 8,618.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,321.54 : 18,485.55 = 5,744.34 : x
  2. Step 2: Convert to fraction form
    12,321.54/18,485.55 = 5,744.34/x
  3. Step 3: Cross multiply
    12,321.54x = 18,485.55 × 5,744.34
  4. Step 4: Simplify right side
    12,321.54x = 106,187,284.29
  5. Step 5: Solve for x
    x = 106,187,284.29/12,321.54
  6. Step 6: Final answer
    x = 8,618.02

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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.