Home / 7,919.72-11,883.71-5,746.38

Finding the Fourth Proportional to 7,919.72, 11,883.71 and 5,746.38

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Solution

The fourth proportional to 7,919.72, 11,883.71 and 5,746.38 is: 8,622.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,919.72 : 11,883.71 = 5,746.38 : x
  2. Step 2: Convert to fraction form
    7,919.72/11,883.71 = 5,746.38/x
  3. Step 3: Cross multiply
    7,919.72x = 11,883.71 × 5,746.38
  4. Step 4: Simplify right side
    7,919.72x = 68,288,284.74
  5. Step 5: Solve for x
    x = 68,288,284.74/7,919.72
  6. Step 6: Final answer
    x = 8,622.57

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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.