Home / 12,055.20-18,083.52-6,218.88

Finding the Fourth Proportional to 12,055.20, 18,083.52 and 6,218.88

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Solution

The fourth proportional to 12,055.20, 18,083.52 and 6,218.88 is: 9,328.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,055.20 : 18,083.52 = 6,218.88 : x
  2. Step 2: Convert to fraction form
    12,055.20/18,083.52 = 6,218.88/x
  3. Step 3: Cross multiply
    12,055.20x = 18,083.52 × 6,218.88
  4. Step 4: Simplify right side
    12,055.20x = 112,459,240.86
  5. Step 5: Solve for x
    x = 112,459,240.86/12,055.20
  6. Step 6: Final answer
    x = 9,328.69

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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.