Home / 13,435.94-20,154.11-5,116.42

Finding the Fourth Proportional to 13,435.94, 20,154.11 and 5,116.42

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Solution

The fourth proportional to 13,435.94, 20,154.11 and 5,116.42 is: 7,674.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,435.94 : 20,154.11 = 5,116.42 : x
  2. Step 2: Convert to fraction form
    13,435.94/20,154.11 = 5,116.42/x
  3. Step 3: Cross multiply
    13,435.94x = 20,154.11 × 5,116.42
  4. Step 4: Simplify right side
    13,435.94x = 103,116,891.49
  5. Step 5: Solve for x
    x = 103,116,891.49/13,435.94
  6. Step 6: Final answer
    x = 7,674.71

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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.