Home / 13,819.29-19,071.14-7,851.97

Finding the Fourth Proportional to 13,819.29, 19,071.14 and 7,851.97

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Solution

The fourth proportional to 13,819.29, 19,071.14 and 7,851.97 is: 10,836.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,819.29 : 19,071.14 = 7,851.97 : x
  2. Step 2: Convert to fraction form
    13,819.29/19,071.14 = 7,851.97/x
  3. Step 3: Cross multiply
    13,819.29x = 19,071.14 × 7,851.97
  4. Step 4: Simplify right side
    13,819.29x = 149,745,999.52
  5. Step 5: Solve for x
    x = 149,745,999.52/13,819.29
  6. Step 6: Final answer
    x = 10,836.01

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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.