Home / 13,930.56-20,890.98-4,069.62

Finding the Fourth Proportional to 13,930.56, 20,890.98 and 4,069.62

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Solution

The fourth proportional to 13,930.56, 20,890.98 and 4,069.62 is: 6,103.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,930.56 : 20,890.98 = 4,069.62 : x
  2. Step 2: Convert to fraction form
    13,930.56/20,890.98 = 4,069.62/x
  3. Step 3: Cross multiply
    13,930.56x = 20,890.98 × 4,069.62
  4. Step 4: Simplify right side
    13,930.56x = 85,018,350.03
  5. Step 5: Solve for x
    x = 85,018,350.03/13,930.56
  6. Step 6: Final answer
    x = 6,103.01

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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.