Home / 10,747.81-14,791.57-9,090.96

Finding the Fourth Proportional to 10,747.81, 14,791.57 and 9,090.96

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Solution

The fourth proportional to 10,747.81, 14,791.57 and 9,090.96 is: 12,511.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,747.81 : 14,791.57 = 9,090.96 : x
  2. Step 2: Convert to fraction form
    10,747.81/14,791.57 = 9,090.96/x
  3. Step 3: Cross multiply
    10,747.81x = 14,791.57 × 9,090.96
  4. Step 4: Simplify right side
    10,747.81x = 134,469,571.21
  5. Step 5: Solve for x
    x = 134,469,571.21/10,747.81
  6. Step 6: Final answer
    x = 12,511.35

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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.