Home / 12,480.26-18,712.64-4,158.12

Finding the Fourth Proportional to 12,480.26, 18,712.64 and 4,158.12

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Solution

The fourth proportional to 12,480.26, 18,712.64 and 4,158.12 is: 6,234.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,480.26 : 18,712.64 = 4,158.12 : x
  2. Step 2: Convert to fraction form
    12,480.26/18,712.64 = 4,158.12/x
  3. Step 3: Cross multiply
    12,480.26x = 18,712.64 × 4,158.12
  4. Step 4: Simplify right side
    12,480.26x = 77,809,381.85
  5. Step 5: Solve for x
    x = 77,809,381.85/12,480.26
  6. Step 6: Final answer
    x = 6,234.60

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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.