Home / 8,928.42-13,390.80-3,379.85

Finding the Fourth Proportional to 8,928.42, 13,390.80 and 3,379.85

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Solution

The fourth proportional to 8,928.42, 13,390.80 and 3,379.85 is: 5,069.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,928.42 : 13,390.80 = 3,379.85 : x
  2. Step 2: Convert to fraction form
    8,928.42/13,390.80 = 3,379.85/x
  3. Step 3: Cross multiply
    8,928.42x = 13,390.80 × 3,379.85
  4. Step 4: Simplify right side
    8,928.42x = 45,258,895.38
  5. Step 5: Solve for x
    x = 45,258,895.38/8,928.42
  6. Step 6: Final answer
    x = 5,069.08

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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.