Home / 14,778.03-20,395.39-8,230.20

Finding the Fourth Proportional to 14,778.03, 20,395.39 and 8,230.20

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Solution

The fourth proportional to 14,778.03, 20,395.39 and 8,230.20 is: 11,358.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,778.03 : 20,395.39 = 8,230.20 : x
  2. Step 2: Convert to fraction form
    14,778.03/20,395.39 = 8,230.20/x
  3. Step 3: Cross multiply
    14,778.03x = 20,395.39 × 8,230.20
  4. Step 4: Simplify right side
    14,778.03x = 167,858,138.78
  5. Step 5: Solve for x
    x = 167,858,138.78/14,778.03
  6. Step 6: Final answer
    x = 11,358.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.