Home / 8,479.77-12,715.50-3,481.23

Finding the Fourth Proportional to 8,479.77, 12,715.50 and 3,481.23

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Solution

The fourth proportional to 8,479.77, 12,715.50 and 3,481.23 is: 5,220.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,479.77 : 12,715.50 = 3,481.23 : x
  2. Step 2: Convert to fraction form
    8,479.77/12,715.50 = 3,481.23/x
  3. Step 3: Cross multiply
    8,479.77x = 12,715.50 × 3,481.23
  4. Step 4: Simplify right side
    8,479.77x = 44,265,580.07
  5. Step 5: Solve for x
    x = 44,265,580.07/8,479.77
  6. Step 6: Final answer
    x = 5,220.14

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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.