Home / 11,657.54-16,086.91-6,621.75

Finding the Fourth Proportional to 11,657.54, 16,086.91 and 6,621.75

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Solution

The fourth proportional to 11,657.54, 16,086.91 and 6,621.75 is: 9,137.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,657.54 : 16,086.91 = 6,621.75 : x
  2. Step 2: Convert to fraction form
    11,657.54/16,086.91 = 6,621.75/x
  3. Step 3: Cross multiply
    11,657.54x = 16,086.91 × 6,621.75
  4. Step 4: Simplify right side
    11,657.54x = 106,523,382.75
  5. Step 5: Solve for x
    x = 106,523,382.75/11,657.54
  6. Step 6: Final answer
    x = 9,137.72

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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.