Home / 18,619.38-25,696.77-10,664.22

Finding the Fourth Proportional to 18,619.38, 25,696.77 and 10,664.22

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Solution

The fourth proportional to 18,619.38, 25,696.77 and 10,664.22 is: 14,717.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,619.38 : 25,696.77 = 10,664.22 : x
  2. Step 2: Convert to fraction form
    18,619.38/25,696.77 = 10,664.22/x
  3. Step 3: Cross multiply
    18,619.38x = 25,696.77 × 10,664.22
  4. Step 4: Simplify right side
    18,619.38x = 274,036,008.57
  5. Step 5: Solve for x
    x = 274,036,008.57/18,619.38
  6. Step 6: Final answer
    x = 14,717.78

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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.