Home / 8,065.44-12,099.24-7,920.72

Finding the Fourth Proportional to 8,065.44, 12,099.24 and 7,920.72

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Solution

The fourth proportional to 8,065.44, 12,099.24 and 7,920.72 is: 11,882.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,065.44 : 12,099.24 = 7,920.72 : x
  2. Step 2: Convert to fraction form
    8,065.44/12,099.24 = 7,920.72/x
  3. Step 3: Cross multiply
    8,065.44x = 12,099.24 × 7,920.72
  4. Step 4: Simplify right side
    8,065.44x = 95,834,692.25
  5. Step 5: Solve for x
    x = 95,834,692.25/8,065.44
  6. Step 6: Final answer
    x = 11,882.14

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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.