Home / 19,917.84-27,486.39-10,965.16

Finding the Fourth Proportional to 19,917.84, 27,486.39 and 10,965.16

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Solution

The fourth proportional to 19,917.84, 27,486.39 and 10,965.16 is: 15,131.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,917.84 : 27,486.39 = 10,965.16 : x
  2. Step 2: Convert to fraction form
    19,917.84/27,486.39 = 10,965.16/x
  3. Step 3: Cross multiply
    19,917.84x = 27,486.39 × 10,965.16
  4. Step 4: Simplify right side
    19,917.84x = 301,392,664.17
  5. Step 5: Solve for x
    x = 301,392,664.17/19,917.84
  6. Step 6: Final answer
    x = 15,131.79

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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.