Home / 10,331.85-15,480.77-5,394.09

Finding the Fourth Proportional to 10,331.85, 15,480.77 and 5,394.09

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Solution

The fourth proportional to 10,331.85, 15,480.77 and 5,394.09 is: 8,082.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,331.85 : 15,480.77 = 5,394.09 : x
  2. Step 2: Convert to fraction form
    10,331.85/15,480.77 = 5,394.09/x
  3. Step 3: Cross multiply
    10,331.85x = 15,480.77 × 5,394.09
  4. Step 4: Simplify right side
    10,331.85x = 83,504,639.68
  5. Step 5: Solve for x
    x = 83,504,639.68/10,331.85
  6. Step 6: Final answer
    x = 8,082.25

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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.