Home / 12,819.32-19,229.14-4,055

Finding the Fourth Proportional to 12,819.32, 19,229.14 and 4,055

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Solution

The fourth proportional to 12,819.32, 19,229.14 and 4,055 is: 6,082.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,819.32 : 19,229.14 = 4,055 : x
  2. Step 2: Convert to fraction form
    12,819.32/19,229.14 = 4,055/x
  3. Step 3: Cross multiply
    12,819.32x = 19,229.14 × 4,055
  4. Step 4: Simplify right side
    12,819.32x = 77,974,162.70
  5. Step 5: Solve for x
    x = 77,974,162.70/12,819.32
  6. Step 6: Final answer
    x = 6,082.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.