Home / 6,819.99-10,220.40-5,427.13

Finding the Fourth Proportional to 6,819.99, 10,220.40 and 5,427.13

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Solution

The fourth proportional to 6,819.99, 10,220.40 and 5,427.13 is: 8,133.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,819.99 : 10,220.40 = 5,427.13 : x
  2. Step 2: Convert to fraction form
    6,819.99/10,220.40 = 5,427.13/x
  3. Step 3: Cross multiply
    6,819.99x = 10,220.40 × 5,427.13
  4. Step 4: Simplify right side
    6,819.99x = 55,467,439.45
  5. Step 5: Solve for x
    x = 55,467,439.45/6,819.99
  6. Step 6: Final answer
    x = 8,133.07

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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.