Home / 10,991.33-15,167.72-6,453.94

Finding the Fourth Proportional to 10,991.33, 15,167.72 and 6,453.94

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Solution

The fourth proportional to 10,991.33, 15,167.72 and 6,453.94 is: 8,906.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,991.33 : 15,167.72 = 6,453.94 : x
  2. Step 2: Convert to fraction form
    10,991.33/15,167.72 = 6,453.94/x
  3. Step 3: Cross multiply
    10,991.33x = 15,167.72 × 6,453.94
  4. Step 4: Simplify right side
    10,991.33x = 97,891,554.82
  5. Step 5: Solve for x
    x = 97,891,554.82/10,991.33
  6. Step 6: Final answer
    x = 8,906.25

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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.