Home / 12,178.26-18,267.52-4,280.96

Finding the Fourth Proportional to 12,178.26, 18,267.52 and 4,280.96

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Solution

The fourth proportional to 12,178.26, 18,267.52 and 4,280.96 is: 6,421.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,178.26 : 18,267.52 = 4,280.96 : x
  2. Step 2: Convert to fraction form
    12,178.26/18,267.52 = 4,280.96/x
  3. Step 3: Cross multiply
    12,178.26x = 18,267.52 × 4,280.96
  4. Step 4: Simplify right side
    12,178.26x = 78,202,522.42
  5. Step 5: Solve for x
    x = 78,202,522.42/12,178.26
  6. Step 6: Final answer
    x = 6,421.49

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Similar ratio
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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.