Home / 13,817.76-20,711.25-5,495.55

Finding the Fourth Proportional to 13,817.76, 20,711.25 and 5,495.55

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Solution

The fourth proportional to 13,817.76, 20,711.25 and 5,495.55 is: 8,237.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,817.76 : 20,711.25 = 5,495.55 : x
  2. Step 2: Convert to fraction form
    13,817.76/20,711.25 = 5,495.55/x
  3. Step 3: Cross multiply
    13,817.76x = 20,711.25 × 5,495.55
  4. Step 4: Simplify right side
    13,817.76x = 113,819,709.94
  5. Step 5: Solve for x
    x = 113,819,709.94/13,817.76
  6. Step 6: Final answer
    x = 8,237.20

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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.