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Finding the Fourth Proportional to 11,615.22, 17,435.12 and 7,235.69

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Solution

The fourth proportional to 11,615.22, 17,435.12 and 7,235.69 is: 10,861.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,615.22 : 17,435.12 = 7,235.69 : x
  2. Step 2: Convert to fraction form
    11,615.22/17,435.12 = 7,235.69/x
  3. Step 3: Cross multiply
    11,615.22x = 17,435.12 × 7,235.69
  4. Step 4: Simplify right side
    11,615.22x = 126,155,000.08
  5. Step 5: Solve for x
    x = 126,155,000.08/11,615.22
  6. Step 6: Final answer
    x = 10,861.18

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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.