Home / 13,360.21-20,039.54-6,786.25

Finding the Fourth Proportional to 13,360.21, 20,039.54 and 6,786.25

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Solution

The fourth proportional to 13,360.21, 20,039.54 and 6,786.25 is: 10,178.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,360.21 : 20,039.54 = 6,786.25 : x
  2. Step 2: Convert to fraction form
    13,360.21/20,039.54 = 6,786.25/x
  3. Step 3: Cross multiply
    13,360.21x = 20,039.54 × 6,786.25
  4. Step 4: Simplify right side
    13,360.21x = 135,993,244.29
  5. Step 5: Solve for x
    x = 135,993,244.29/13,360.21
  6. Step 6: Final answer
    x = 10,178.98

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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.