Home / 8,477.20-12,708.06-3,279.16

Finding the Fourth Proportional to 8,477.20, 12,708.06 and 3,279.16

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Solution

The fourth proportional to 8,477.20, 12,708.06 and 3,279.16 is: 4,915.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,477.20 : 12,708.06 = 3,279.16 : x
  2. Step 2: Convert to fraction form
    8,477.20/12,708.06 = 3,279.16/x
  3. Step 3: Cross multiply
    8,477.20x = 12,708.06 × 3,279.16
  4. Step 4: Simplify right side
    8,477.20x = 41,671,762.03
  5. Step 5: Solve for x
    x = 41,671,762.03/8,477.20
  6. Step 6: Final answer
    x = 4,915.75

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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.