Home / 8,449.72-12,680.35-3,519.45

Finding the Fourth Proportional to 8,449.72, 12,680.35 and 3,519.45

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Solution

The fourth proportional to 8,449.72, 12,680.35 and 3,519.45 is: 5,281.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,449.72 : 12,680.35 = 3,519.45 : x
  2. Step 2: Convert to fraction form
    8,449.72/12,680.35 = 3,519.45/x
  3. Step 3: Cross multiply
    8,449.72x = 12,680.35 × 3,519.45
  4. Step 4: Simplify right side
    8,449.72x = 44,627,849.01
  5. Step 5: Solve for x
    x = 44,627,849.01/8,449.72
  6. Step 6: Final answer
    x = 5,281.58

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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.