Home / 13,401.27-18,481.64-8,365.95

Finding the Fourth Proportional to 13,401.27, 18,481.64 and 8,365.95

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Solution

The fourth proportional to 13,401.27, 18,481.64 and 8,365.95 is: 11,537.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,401.27 : 18,481.64 = 8,365.95 : x
  2. Step 2: Convert to fraction form
    13,401.27/18,481.64 = 8,365.95/x
  3. Step 3: Cross multiply
    13,401.27x = 18,481.64 × 8,365.95
  4. Step 4: Simplify right side
    13,401.27x = 154,616,476.16
  5. Step 5: Solve for x
    x = 154,616,476.16/13,401.27
  6. Step 6: Final answer
    x = 11,537.45

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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.