Home / 15,167.33-20,930.25-8,453.69

Finding the Fourth Proportional to 15,167.33, 20,930.25 and 8,453.69

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Solution

The fourth proportional to 15,167.33, 20,930.25 and 8,453.69 is: 11,665.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,167.33 : 20,930.25 = 8,453.69 : x
  2. Step 2: Convert to fraction form
    15,167.33/20,930.25 = 8,453.69/x
  3. Step 3: Cross multiply
    15,167.33x = 20,930.25 × 8,453.69
  4. Step 4: Simplify right side
    15,167.33x = 176,937,845.12
  5. Step 5: Solve for x
    x = 176,937,845.12/15,167.33
  6. Step 6: Final answer
    x = 11,665.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.