Home / 12,401.63-17,115.39-6,813.71

Finding the Fourth Proportional to 12,401.63, 17,115.39 and 6,813.71

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Solution

The fourth proportional to 12,401.63, 17,115.39 and 6,813.71 is: 9,403.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,401.63 : 17,115.39 = 6,813.71 : x
  2. Step 2: Convert to fraction form
    12,401.63/17,115.39 = 6,813.71/x
  3. Step 3: Cross multiply
    12,401.63x = 17,115.39 × 6,813.71
  4. Step 4: Simplify right side
    12,401.63x = 116,619,218.42
  5. Step 5: Solve for x
    x = 116,619,218.42/12,401.63
  6. Step 6: Final answer
    x = 9,403.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.