Home / 12,168.12-18,252.18-4,276.83

Finding the Fourth Proportional to 12,168.12, 18,252.18 and 4,276.83

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Solution

The fourth proportional to 12,168.12, 18,252.18 and 4,276.83 is: 6,415.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,168.12 : 18,252.18 = 4,276.83 : x
  2. Step 2: Convert to fraction form
    12,168.12/18,252.18 = 4,276.83/x
  3. Step 3: Cross multiply
    12,168.12x = 18,252.18 × 4,276.83
  4. Step 4: Simplify right side
    12,168.12x = 78,061,358.34
  5. Step 5: Solve for x
    x = 78,061,358.34/12,168.12
  6. Step 6: Final answer
    x = 6,415.24

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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.