Home / 12,819.28-19,114.04-12,586

Finding the Fourth Proportional to 12,819.28, 19,114.04 and 12,586

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Solution

The fourth proportional to 12,819.28, 19,114.04 and 12,586 is: 18,766.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,819.28 : 19,114.04 = 12,586 : x
  2. Step 2: Convert to fraction form
    12,819.28/19,114.04 = 12,586/x
  3. Step 3: Cross multiply
    12,819.28x = 19,114.04 × 12,586
  4. Step 4: Simplify right side
    12,819.28x = 240,569,307.44
  5. Step 5: Solve for x
    x = 240,569,307.44/12,819.28
  6. Step 6: Final answer
    x = 18,766.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.