Home / 8,358.21-12,531.39-4,195.21

Finding the Fourth Proportional to 8,358.21, 12,531.39 and 4,195.21

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Solution

The fourth proportional to 8,358.21, 12,531.39 and 4,195.21 is: 6,289.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,358.21 : 12,531.39 = 4,195.21 : x
  2. Step 2: Convert to fraction form
    8,358.21/12,531.39 = 4,195.21/x
  3. Step 3: Cross multiply
    8,358.21x = 12,531.39 × 4,195.21
  4. Step 4: Simplify right side
    8,358.21x = 52,571,812.64
  5. Step 5: Solve for x
    x = 52,571,812.64/8,358.21
  6. Step 6: Final answer
    x = 6,289.84

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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.