Home / 13,331.36-18,401.68-8,364.96

Finding the Fourth Proportional to 13,331.36, 18,401.68 and 8,364.96

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Solution

The fourth proportional to 13,331.36, 18,401.68 and 8,364.96 is: 11,546.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,331.36 : 18,401.68 = 8,364.96 : x
  2. Step 2: Convert to fraction form
    13,331.36/18,401.68 = 8,364.96/x
  3. Step 3: Cross multiply
    13,331.36x = 18,401.68 × 8,364.96
  4. Step 4: Simplify right side
    13,331.36x = 153,929,317.13
  5. Step 5: Solve for x
    x = 153,929,317.13/13,331.36
  6. Step 6: Final answer
    x = 11,546.41

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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.