Home / 11,923.92-16,455.60-6,889.32

Finding the Fourth Proportional to 11,923.92, 16,455.60 and 6,889.32

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Solution

The fourth proportional to 11,923.92, 16,455.60 and 6,889.32 is: 9,507.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,923.92 : 16,455.60 = 6,889.32 : x
  2. Step 2: Convert to fraction form
    11,923.92/16,455.60 = 6,889.32/x
  3. Step 3: Cross multiply
    11,923.92x = 16,455.60 × 6,889.32
  4. Step 4: Simplify right side
    11,923.92x = 113,367,894.19
  5. Step 5: Solve for x
    x = 113,367,894.19/11,923.92
  6. Step 6: Final answer
    x = 9,507.60

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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.