Home / 12,819.08-19,195.68-10,621.28

Finding the Fourth Proportional to 12,819.08, 19,195.68 and 10,621.28

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Solution

The fourth proportional to 12,819.08, 19,195.68 and 10,621.28 is: 15,904.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,819.08 : 19,195.68 = 10,621.28 : x
  2. Step 2: Convert to fraction form
    12,819.08/19,195.68 = 10,621.28/x
  3. Step 3: Cross multiply
    12,819.08x = 19,195.68 × 10,621.28
  4. Step 4: Simplify right side
    12,819.08x = 203,882,692.07
  5. Step 5: Solve for x
    x = 203,882,692.07/12,819.08
  6. Step 6: Final answer
    x = 15,904.63

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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.