Home / 8,101.45-12,152.08-2,479.06

Finding the Fourth Proportional to 8,101.45, 12,152.08 and 2,479.06

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Solution

The fourth proportional to 8,101.45, 12,152.08 and 2,479.06 is: 3,718.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,101.45 : 12,152.08 = 2,479.06 : x
  2. Step 2: Convert to fraction form
    8,101.45/12,152.08 = 2,479.06/x
  3. Step 3: Cross multiply
    8,101.45x = 12,152.08 × 2,479.06
  4. Step 4: Simplify right side
    8,101.45x = 30,125,735.44
  5. Step 5: Solve for x
    x = 30,125,735.44/8,101.45
  6. Step 6: Final answer
    x = 3,718.56

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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.