Home / 10,553.99-15,819.59-6,858.87

Finding the Fourth Proportional to 10,553.99, 15,819.59 and 6,858.87

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Solution

The fourth proportional to 10,553.99, 15,819.59 and 6,858.87 is: 10,280.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,553.99 : 15,819.59 = 6,858.87 : x
  2. Step 2: Convert to fraction form
    10,553.99/15,819.59 = 6,858.87/x
  3. Step 3: Cross multiply
    10,553.99x = 15,819.59 × 6,858.87
  4. Step 4: Simplify right side
    10,553.99x = 108,504,476.97
  5. Step 5: Solve for x
    x = 108,504,476.97/10,553.99
  6. Step 6: Final answer
    x = 10,280.90

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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.