Home / 8,114.40-11,201.04-5,320.80

Finding the Fourth Proportional to 8,114.40, 11,201.04 and 5,320.80

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Solution

The fourth proportional to 8,114.40, 11,201.04 and 5,320.80 is: 7,344.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,114.40 : 11,201.04 = 5,320.80 : x
  2. Step 2: Convert to fraction form
    8,114.40/11,201.04 = 5,320.80/x
  3. Step 3: Cross multiply
    8,114.40x = 11,201.04 × 5,320.80
  4. Step 4: Simplify right side
    8,114.40x = 59,598,493.63
  5. Step 5: Solve for x
    x = 59,598,493.63/8,114.40
  6. Step 6: Final answer
    x = 7,344.78

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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.