Home / 18,401.78-25,395.08-10,336.86

Finding the Fourth Proportional to 18,401.78, 25,395.08 and 10,336.86

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Solution

The fourth proportional to 18,401.78, 25,395.08 and 10,336.86 is: 14,265.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,401.78 : 25,395.08 = 10,336.86 : x
  2. Step 2: Convert to fraction form
    18,401.78/25,395.08 = 10,336.86/x
  3. Step 3: Cross multiply
    18,401.78x = 25,395.08 × 10,336.86
  4. Step 4: Simplify right side
    18,401.78x = 262,505,334.96
  5. Step 5: Solve for x
    x = 262,505,334.96/18,401.78
  6. Step 6: Final answer
    x = 14,265.21

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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.