Home / 13,433.48-18,532.78-8,119.07

Finding the Fourth Proportional to 13,433.48, 18,532.78 and 8,119.07

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Solution

The fourth proportional to 13,433.48, 18,532.78 and 8,119.07 is: 11,201.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,433.48 : 18,532.78 = 8,119.07 : x
  2. Step 2: Convert to fraction form
    13,433.48/18,532.78 = 8,119.07/x
  3. Step 3: Cross multiply
    13,433.48x = 18,532.78 × 8,119.07
  4. Step 4: Simplify right side
    13,433.48x = 150,468,825.15
  5. Step 5: Solve for x
    x = 150,468,825.15/13,433.48
  6. Step 6: Final answer
    x = 11,201.04

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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.