Home / 8,455.08-12,679.74-3,523.32

Finding the Fourth Proportional to 8,455.08, 12,679.74 and 3,523.32

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Solution

The fourth proportional to 8,455.08, 12,679.74 and 3,523.32 is: 5,283.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,455.08 : 12,679.74 = 3,523.32 : x
  2. Step 2: Convert to fraction form
    8,455.08/12,679.74 = 3,523.32/x
  3. Step 3: Cross multiply
    8,455.08x = 12,679.74 × 3,523.32
  4. Step 4: Simplify right side
    8,455.08x = 44,674,781.54
  5. Step 5: Solve for x
    x = 44,674,781.54/8,455.08
  6. Step 6: Final answer
    x = 5,283.78

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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.