Home / 7,919.91-11,868.76-6,156.84

Finding the Fourth Proportional to 7,919.91, 11,868.76 and 6,156.84

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Solution

The fourth proportional to 7,919.91, 11,868.76 and 6,156.84 is: 9,226.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,919.91 : 11,868.76 = 6,156.84 : x
  2. Step 2: Convert to fraction form
    7,919.91/11,868.76 = 6,156.84/x
  3. Step 3: Cross multiply
    7,919.91x = 11,868.76 × 6,156.84
  4. Step 4: Simplify right side
    7,919.91x = 73,074,108.52
  5. Step 5: Solve for x
    x = 73,074,108.52/7,919.91
  6. Step 6: Final answer
    x = 9,226.63

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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.