Home / 11,360.17-15,679.37-6,645.61

Finding the Fourth Proportional to 11,360.17, 15,679.37 and 6,645.61

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Solution

The fourth proportional to 11,360.17, 15,679.37 and 6,645.61 is: 9,172.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,360.17 : 15,679.37 = 6,645.61 : x
  2. Step 2: Convert to fraction form
    11,360.17/15,679.37 = 6,645.61/x
  3. Step 3: Cross multiply
    11,360.17x = 15,679.37 × 6,645.61
  4. Step 4: Simplify right side
    11,360.17x = 104,198,944.84
  5. Step 5: Solve for x
    x = 104,198,944.84/11,360.17
  6. Step 6: Final answer
    x = 9,172.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.