Home / 12,518.53-18,777.81-3,754.75

Finding the Fourth Proportional to 12,518.53, 18,777.81 and 3,754.75

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Solution

The fourth proportional to 12,518.53, 18,777.81 and 3,754.75 is: 5,632.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,518.53 : 18,777.81 = 3,754.75 : x
  2. Step 2: Convert to fraction form
    12,518.53/18,777.81 = 3,754.75/x
  3. Step 3: Cross multiply
    12,518.53x = 18,777.81 × 3,754.75
  4. Step 4: Simplify right side
    12,518.53x = 70,505,982.10
  5. Step 5: Solve for x
    x = 70,505,982.10/12,518.53
  6. Step 6: Final answer
    x = 5,632.13

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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.