Home / 12,176.67-18,272.30-4,386.09

Finding the Fourth Proportional to 12,176.67, 18,272.30 and 4,386.09

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Solution

The fourth proportional to 12,176.67, 18,272.30 and 4,386.09 is: 6,581.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,176.67 : 18,272.30 = 4,386.09 : x
  2. Step 2: Convert to fraction form
    12,176.67/18,272.30 = 4,386.09/x
  3. Step 3: Cross multiply
    12,176.67x = 18,272.30 × 4,386.09
  4. Step 4: Simplify right side
    12,176.67x = 80,143,930.38
  5. Step 5: Solve for x
    x = 80,143,930.38/12,176.67
  6. Step 6: Final answer
    x = 6,581.76

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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.