Home / 8,167.32-12,249.36-3,486.40

Finding the Fourth Proportional to 8,167.32, 12,249.36 and 3,486.40

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Solution

The fourth proportional to 8,167.32, 12,249.36 and 3,486.40 is: 5,228.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,167.32 : 12,249.36 = 3,486.40 : x
  2. Step 2: Convert to fraction form
    8,167.32/12,249.36 = 3,486.40/x
  3. Step 3: Cross multiply
    8,167.32x = 12,249.36 × 3,486.40
  4. Step 4: Simplify right side
    8,167.32x = 42,706,168.70
  5. Step 5: Solve for x
    x = 42,706,168.70/8,167.32
  6. Step 6: Final answer
    x = 5,228.91

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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.