Home / 11,405.96-17,108.70-5,161.52

Finding the Fourth Proportional to 11,405.96, 17,108.70 and 5,161.52

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Solution

The fourth proportional to 11,405.96, 17,108.70 and 5,161.52 is: 7,742.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,405.96 : 17,108.70 = 5,161.52 : x
  2. Step 2: Convert to fraction form
    11,405.96/17,108.70 = 5,161.52/x
  3. Step 3: Cross multiply
    11,405.96x = 17,108.70 × 5,161.52
  4. Step 4: Simplify right side
    11,405.96x = 88,306,897.22
  5. Step 5: Solve for x
    x = 88,306,897.22/11,405.96
  6. Step 6: Final answer
    x = 7,742.17

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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.