Home / 13,201.05-18,205.28-8,958.27

Finding the Fourth Proportional to 13,201.05, 18,205.28 and 8,958.27

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Solution

The fourth proportional to 13,201.05, 18,205.28 and 8,958.27 is: 12,354.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,201.05 : 18,205.28 = 8,958.27 : x
  2. Step 2: Convert to fraction form
    13,201.05/18,205.28 = 8,958.27/x
  3. Step 3: Cross multiply
    13,201.05x = 18,205.28 × 8,958.27
  4. Step 4: Simplify right side
    13,201.05x = 163,087,768.87
  5. Step 5: Solve for x
    x = 163,087,768.87/13,201.05
  6. Step 6: Final answer
    x = 12,354.15

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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.