Home / 12,176.38-18,266.59-4,276.85

Finding the Fourth Proportional to 12,176.38, 18,266.59 and 4,276.85

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Solution

The fourth proportional to 12,176.38, 18,266.59 and 4,276.85 is: 6,415.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,176.38 : 18,266.59 = 4,276.85 : x
  2. Step 2: Convert to fraction form
    12,176.38/18,266.59 = 4,276.85/x
  3. Step 3: Cross multiply
    12,176.38x = 18,266.59 × 4,276.85
  4. Step 4: Simplify right side
    12,176.38x = 78,123,465.44
  5. Step 5: Solve for x
    x = 78,123,465.44/12,176.38
  6. Step 6: Final answer
    x = 6,415.98

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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.