Home / 8,479.07-12,708.77-3,210.73

Finding the Fourth Proportional to 8,479.07, 12,708.77 and 3,210.73

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Solution

The fourth proportional to 8,479.07, 12,708.77 and 3,210.73 is: 4,812.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,479.07 : 12,708.77 = 3,210.73 : x
  2. Step 2: Convert to fraction form
    8,479.07/12,708.77 = 3,210.73/x
  3. Step 3: Cross multiply
    8,479.07x = 12,708.77 × 3,210.73
  4. Step 4: Simplify right side
    8,479.07x = 40,804,381.28
  5. Step 5: Solve for x
    x = 40,804,381.28/8,479.07
  6. Step 6: Final answer
    x = 4,812.37

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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.