Home / 19,917.45-27,486.09-10,965.30

Finding the Fourth Proportional to 19,917.45, 27,486.09 and 10,965.30

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Solution

The fourth proportional to 19,917.45, 27,486.09 and 10,965.30 is: 15,132.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,917.45 : 27,486.09 = 10,965.30 : x
  2. Step 2: Convert to fraction form
    19,917.45/27,486.09 = 10,965.30/x
  3. Step 3: Cross multiply
    19,917.45x = 27,486.09 × 10,965.30
  4. Step 4: Simplify right side
    19,917.45x = 301,393,222.68
  5. Step 5: Solve for x
    x = 301,393,222.68/19,917.45
  6. Step 6: Final answer
    x = 15,132.12

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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.