Home / 8,477.46-12,708.68-3,208.80

Finding the Fourth Proportional to 8,477.46, 12,708.68 and 3,208.80

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Solution

The fourth proportional to 8,477.46, 12,708.68 and 3,208.80 is: 4,810.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,477.46 : 12,708.68 = 3,208.80 : x
  2. Step 2: Convert to fraction form
    8,477.46/12,708.68 = 3,208.80/x
  3. Step 3: Cross multiply
    8,477.46x = 12,708.68 × 3,208.80
  4. Step 4: Simplify right side
    8,477.46x = 40,779,590.56
  5. Step 5: Solve for x
    x = 40,779,590.56/8,477.46
  6. Step 6: Final answer
    x = 4,810.35

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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.