Home / 18,919.68-26,086.02-11,833.80

Finding the Fourth Proportional to 18,919.68, 26,086.02 and 11,833.80

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Solution

The fourth proportional to 18,919.68, 26,086.02 and 11,833.80 is: 16,316.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,919.68 : 26,086.02 = 11,833.80 : x
  2. Step 2: Convert to fraction form
    18,919.68/26,086.02 = 11,833.80/x
  3. Step 3: Cross multiply
    18,919.68x = 26,086.02 × 11,833.80
  4. Step 4: Simplify right side
    18,919.68x = 308,696,743.48
  5. Step 5: Solve for x
    x = 308,696,743.48/18,919.68
  6. Step 6: Final answer
    x = 16,316.17

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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.