Home / 12,149.33-18,228.05-4,358.75

Finding the Fourth Proportional to 12,149.33, 18,228.05 and 4,358.75

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Solution

The fourth proportional to 12,149.33, 18,228.05 and 4,358.75 is: 6,539.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,149.33 : 18,228.05 = 4,358.75 : x
  2. Step 2: Convert to fraction form
    12,149.33/18,228.05 = 4,358.75/x
  3. Step 3: Cross multiply
    12,149.33x = 18,228.05 × 4,358.75
  4. Step 4: Simplify right side
    12,149.33x = 79,451,491.14
  5. Step 5: Solve for x
    x = 79,451,491.14/12,149.33
  6. Step 6: Final answer
    x = 6,539.58

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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.