Home / 11,502.45-17,255.70-4,111.20

Finding the Fourth Proportional to 11,502.45, 17,255.70 and 4,111.20

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Solution

The fourth proportional to 11,502.45, 17,255.70 and 4,111.20 is: 6,167.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,502.45 : 17,255.70 = 4,111.20 : x
  2. Step 2: Convert to fraction form
    11,502.45/17,255.70 = 4,111.20/x
  3. Step 3: Cross multiply
    11,502.45x = 17,255.70 × 4,111.20
  4. Step 4: Simplify right side
    11,502.45x = 70,941,633.84
  5. Step 5: Solve for x
    x = 70,941,633.84/11,502.45
  6. Step 6: Final answer
    x = 6,167.52

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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.