Home / 10,209.09-15,313.64-2,813.62

Finding the Fourth Proportional to 10,209.09, 15,313.64 and 2,813.62

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Solution

The fourth proportional to 10,209.09, 15,313.64 and 2,813.62 is: 4,220.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,209.09 : 15,313.64 = 2,813.62 : x
  2. Step 2: Convert to fraction form
    10,209.09/15,313.64 = 2,813.62/x
  3. Step 3: Cross multiply
    10,209.09x = 15,313.64 × 2,813.62
  4. Step 4: Simplify right side
    10,209.09x = 43,086,763.78
  5. Step 5: Solve for x
    x = 43,086,763.78/10,209.09
  6. Step 6: Final answer
    x = 4,220.43

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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.