Home / 8,011.28-12,020.16-2,817.56

Finding the Fourth Proportional to 8,011.28, 12,020.16 and 2,817.56

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Solution

The fourth proportional to 8,011.28, 12,020.16 and 2,817.56 is: 4,227.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,011.28 : 12,020.16 = 2,817.56 : x
  2. Step 2: Convert to fraction form
    8,011.28/12,020.16 = 2,817.56/x
  3. Step 3: Cross multiply
    8,011.28x = 12,020.16 × 2,817.56
  4. Step 4: Simplify right side
    8,011.28x = 33,867,522.01
  5. Step 5: Solve for x
    x = 33,867,522.01/8,011.28
  6. Step 6: Final answer
    x = 4,227.48

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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.