Home / 8,110.40-12,151.20-5,028.80

Finding the Fourth Proportional to 8,110.40, 12,151.20 and 5,028.80

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Solution

The fourth proportional to 8,110.40, 12,151.20 and 5,028.80 is: 7,534.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,110.40 : 12,151.20 = 5,028.80 : x
  2. Step 2: Convert to fraction form
    8,110.40/12,151.20 = 5,028.80/x
  3. Step 3: Cross multiply
    8,110.40x = 12,151.20 × 5,028.80
  4. Step 4: Simplify right side
    8,110.40x = 61,105,954.56
  5. Step 5: Solve for x
    x = 61,105,954.56/8,110.40
  6. Step 6: Final answer
    x = 7,534.27

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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.