Home / 13,805.28-19,050.71-7,836.84

Finding the Fourth Proportional to 13,805.28, 19,050.71 and 7,836.84

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Solution

The fourth proportional to 13,805.28, 19,050.71 and 7,836.84 is: 10,814.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,805.28 : 19,050.71 = 7,836.84 : x
  2. Step 2: Convert to fraction form
    13,805.28/19,050.71 = 7,836.84/x
  3. Step 3: Cross multiply
    13,805.28x = 19,050.71 × 7,836.84
  4. Step 4: Simplify right side
    13,805.28x = 149,297,326.97
  5. Step 5: Solve for x
    x = 149,297,326.97/13,805.28
  6. Step 6: Final answer
    x = 10,814.51

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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.