Home / 8,951.72-13,427.78-2,378.57

Finding the Fourth Proportional to 8,951.72, 13,427.78 and 2,378.57

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Solution

The fourth proportional to 8,951.72, 13,427.78 and 2,378.57 is: 3,567.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,951.72 : 13,427.78 = 2,378.57 : x
  2. Step 2: Convert to fraction form
    8,951.72/13,427.78 = 2,378.57/x
  3. Step 3: Cross multiply
    8,951.72x = 13,427.78 × 2,378.57
  4. Step 4: Simplify right side
    8,951.72x = 31,938,835.64
  5. Step 5: Solve for x
    x = 31,938,835.64/8,951.72
  6. Step 6: Final answer
    x = 3,567.90

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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.