Home / 11,993.92-16,551.58-6,688.74

Finding the Fourth Proportional to 11,993.92, 16,551.58 and 6,688.74

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Solution

The fourth proportional to 11,993.92, 16,551.58 and 6,688.74 is: 9,230.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,993.92 : 16,551.58 = 6,688.74 : x
  2. Step 2: Convert to fraction form
    11,993.92/16,551.58 = 6,688.74/x
  3. Step 3: Cross multiply
    11,993.92x = 16,551.58 × 6,688.74
  4. Step 4: Simplify right side
    11,993.92x = 110,709,239.87
  5. Step 5: Solve for x
    x = 110,709,239.87/11,993.92
  6. Step 6: Final answer
    x = 9,230.45

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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.