Home / 11,487.96-17,197.92-7,091.28

Finding the Fourth Proportional to 11,487.96, 17,197.92 and 7,091.28

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Solution

The fourth proportional to 11,487.96, 17,197.92 and 7,091.28 is: 10,615.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,487.96 : 17,197.92 = 7,091.28 : x
  2. Step 2: Convert to fraction form
    11,487.96/17,197.92 = 7,091.28/x
  3. Step 3: Cross multiply
    11,487.96x = 17,197.92 × 7,091.28
  4. Step 4: Simplify right side
    11,487.96x = 121,955,266.14
  5. Step 5: Solve for x
    x = 121,955,266.14/11,487.96
  6. Step 6: Final answer
    x = 10,615.92

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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.