Home / 13,819.28-19,071.12-7,851.96

Finding the Fourth Proportional to 13,819.28, 19,071.12 and 7,851.96

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Solution

The fourth proportional to 13,819.28, 19,071.12 and 7,851.96 is: 10,836.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,819.28 : 19,071.12 = 7,851.96 : x
  2. Step 2: Convert to fraction form
    13,819.28/19,071.12 = 7,851.96/x
  3. Step 3: Cross multiply
    13,819.28x = 19,071.12 × 7,851.96
  4. Step 4: Simplify right side
    13,819.28x = 149,745,671.40
  5. Step 5: Solve for x
    x = 149,745,671.40/13,819.28
  6. Step 6: Final answer
    x = 10,836.00

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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.