Home / 12,507.30-18,755.42-3,740.54

Finding the Fourth Proportional to 12,507.30, 18,755.42 and 3,740.54

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Solution

The fourth proportional to 12,507.30, 18,755.42 and 3,740.54 is: 5,609.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,507.30 : 18,755.42 = 3,740.54 : x
  2. Step 2: Convert to fraction form
    12,507.30/18,755.42 = 3,740.54/x
  3. Step 3: Cross multiply
    12,507.30x = 18,755.42 × 3,740.54
  4. Step 4: Simplify right side
    12,507.30x = 70,155,286.25
  5. Step 5: Solve for x
    x = 70,155,286.25/12,507.30
  6. Step 6: Final answer
    x = 5,609.15

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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.