Home / 18,668.68-25,763.38-10,712.92

Finding the Fourth Proportional to 18,668.68, 25,763.38 and 10,712.92

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Solution

The fourth proportional to 18,668.68, 25,763.38 and 10,712.92 is: 14,784.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,668.68 : 25,763.38 = 10,712.92 : x
  2. Step 2: Convert to fraction form
    18,668.68/25,763.38 = 10,712.92/x
  3. Step 3: Cross multiply
    18,668.68x = 25,763.38 × 10,712.92
  4. Step 4: Simplify right side
    18,668.68x = 276,001,028.87
  5. Step 5: Solve for x
    x = 276,001,028.87/18,668.68
  6. Step 6: Final answer
    x = 14,784.17

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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.