Home / 13,414.99-20,126.60-6,403.94

Finding the Fourth Proportional to 13,414.99, 20,126.60 and 6,403.94

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Solution

The fourth proportional to 13,414.99, 20,126.60 and 6,403.94 is: 9,607.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,414.99 : 20,126.60 = 6,403.94 : x
  2. Step 2: Convert to fraction form
    13,414.99/20,126.60 = 6,403.94/x
  3. Step 3: Cross multiply
    13,414.99x = 20,126.60 × 6,403.94
  4. Step 4: Simplify right side
    13,414.99x = 128,889,538.80
  5. Step 5: Solve for x
    x = 128,889,538.80/13,414.99
  6. Step 6: Final answer
    x = 9,607.87

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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.