Home / 12,338.34-18,515.70-5,765.03

Finding the Fourth Proportional to 12,338.34, 18,515.70 and 5,765.03

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Solution

The fourth proportional to 12,338.34, 18,515.70 and 5,765.03 is: 8,651.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,338.34 : 18,515.70 = 5,765.03 : x
  2. Step 2: Convert to fraction form
    12,338.34/18,515.70 = 5,765.03/x
  3. Step 3: Cross multiply
    12,338.34x = 18,515.70 × 5,765.03
  4. Step 4: Simplify right side
    12,338.34x = 106,743,565.97
  5. Step 5: Solve for x
    x = 106,743,565.97/12,338.34
  6. Step 6: Final answer
    x = 8,651.38

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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.