Home / 11,876.20-16,390.08-6,571.52

Finding the Fourth Proportional to 11,876.20, 16,390.08 and 6,571.52

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Solution

The fourth proportional to 11,876.20, 16,390.08 and 6,571.52 is: 9,069.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,876.20 : 16,390.08 = 6,571.52 : x
  2. Step 2: Convert to fraction form
    11,876.20/16,390.08 = 6,571.52/x
  3. Step 3: Cross multiply
    11,876.20x = 16,390.08 × 6,571.52
  4. Step 4: Simplify right side
    11,876.20x = 107,707,738.52
  5. Step 5: Solve for x
    x = 107,707,738.52/11,876.20
  6. Step 6: Final answer
    x = 9,069.21

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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.