Home / 13,616.07-20,414.49-5,289.15

Finding the Fourth Proportional to 13,616.07, 20,414.49 and 5,289.15

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Solution

The fourth proportional to 13,616.07, 20,414.49 and 5,289.15 is: 7,929.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,616.07 : 20,414.49 = 5,289.15 : x
  2. Step 2: Convert to fraction form
    13,616.07/20,414.49 = 5,289.15/x
  3. Step 3: Cross multiply
    13,616.07x = 20,414.49 × 5,289.15
  4. Step 4: Simplify right side
    13,616.07x = 107,975,299.78
  5. Step 5: Solve for x
    x = 107,975,299.78/13,616.07
  6. Step 6: Final answer
    x = 7,929.99

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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.