Home / 11,881.72-16,400.87-6,847.95

Finding the Fourth Proportional to 11,881.72, 16,400.87 and 6,847.95

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Solution

The fourth proportional to 11,881.72, 16,400.87 and 6,847.95 is: 9,452.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,881.72 : 16,400.87 = 6,847.95 : x
  2. Step 2: Convert to fraction form
    11,881.72/16,400.87 = 6,847.95/x
  3. Step 3: Cross multiply
    11,881.72x = 16,400.87 × 6,847.95
  4. Step 4: Simplify right side
    11,881.72x = 112,312,336.92
  5. Step 5: Solve for x
    x = 112,312,336.92/11,881.72
  6. Step 6: Final answer
    x = 9,452.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.