Home / 8,215.62-12,323.97-4,515.90

Finding the Fourth Proportional to 8,215.62, 12,323.97 and 4,515.90

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Solution

The fourth proportional to 8,215.62, 12,323.97 and 4,515.90 is: 6,774.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,215.62 : 12,323.97 = 4,515.90 : x
  2. Step 2: Convert to fraction form
    8,215.62/12,323.97 = 4,515.90/x
  3. Step 3: Cross multiply
    8,215.62x = 12,323.97 × 4,515.90
  4. Step 4: Simplify right side
    8,215.62x = 55,653,816.12
  5. Step 5: Solve for x
    x = 55,653,816.12/8,215.62
  6. Step 6: Final answer
    x = 6,774.15

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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.