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Finding the Fourth Proportional to 11,602.79, 17,364.77 and 7,163.28

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Solution

The fourth proportional to 11,602.79, 17,364.77 and 7,163.28 is: 10,720.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,602.79 : 17,364.77 = 7,163.28 : x
  2. Step 2: Convert to fraction form
    11,602.79/17,364.77 = 7,163.28/x
  3. Step 3: Cross multiply
    11,602.79x = 17,364.77 × 7,163.28
  4. Step 4: Simplify right side
    11,602.79x = 124,388,765.81
  5. Step 5: Solve for x
    x = 124,388,765.81/11,602.79
  6. Step 6: Final answer
    x = 10,720.59

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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.