Home / 19,917.92-27,486.72-10,965.38

Finding the Fourth Proportional to 19,917.92, 27,486.72 and 10,965.38

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Solution

The fourth proportional to 19,917.92, 27,486.72 and 10,965.38 is: 15,132.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,917.92 : 27,486.72 = 10,965.38 : x
  2. Step 2: Convert to fraction form
    19,917.92/27,486.72 = 10,965.38/x
  3. Step 3: Cross multiply
    19,917.92x = 27,486.72 × 10,965.38
  4. Step 4: Simplify right side
    19,917.92x = 301,402,192.32
  5. Step 5: Solve for x
    x = 301,402,192.32/19,917.92
  6. Step 6: Final answer
    x = 15,132.22

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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.