Home / 11,214.30-16,820.84-3,422.50

Finding the Fourth Proportional to 11,214.30, 16,820.84 and 3,422.50

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Solution

The fourth proportional to 11,214.30, 16,820.84 and 3,422.50 is: 5,133.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,214.30 : 16,820.84 = 3,422.50 : x
  2. Step 2: Convert to fraction form
    11,214.30/16,820.84 = 3,422.50/x
  3. Step 3: Cross multiply
    11,214.30x = 16,820.84 × 3,422.50
  4. Step 4: Simplify right side
    11,214.30x = 57,569,324.90
  5. Step 5: Solve for x
    x = 57,569,324.90/11,214.30
  6. Step 6: Final answer
    x = 5,133.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.