Home / 12,065.60-18,108.12-6,223.88

Finding the Fourth Proportional to 12,065.60, 18,108.12 and 6,223.88

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Solution

The fourth proportional to 12,065.60, 18,108.12 and 6,223.88 is: 9,340.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,065.60 : 18,108.12 = 6,223.88 : x
  2. Step 2: Convert to fraction form
    12,065.60/18,108.12 = 6,223.88/x
  3. Step 3: Cross multiply
    12,065.60x = 18,108.12 × 6,223.88
  4. Step 4: Simplify right side
    12,065.60x = 112,702,765.91
  5. Step 5: Solve for x
    x = 112,702,765.91/12,065.60
  6. Step 6: Final answer
    x = 9,340.83

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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.