Home / 7,942.72-11,919.84-5,587.24

Finding the Fourth Proportional to 7,942.72, 11,919.84 and 5,587.24

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Solution

The fourth proportional to 7,942.72, 11,919.84 and 5,587.24 is: 8,384.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,942.72 : 11,919.84 = 5,587.24 : x
  2. Step 2: Convert to fraction form
    7,942.72/11,919.84 = 5,587.24/x
  3. Step 3: Cross multiply
    7,942.72x = 11,919.84 × 5,587.24
  4. Step 4: Simplify right side
    7,942.72x = 66,599,006.84
  5. Step 5: Solve for x
    x = 66,599,006.84/7,942.72
  6. Step 6: Final answer
    x = 8,384.91

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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.