Home / 11,929.92-16,458.57-6,893.21

Finding the Fourth Proportional to 11,929.92, 16,458.57 and 6,893.21

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Solution

The fourth proportional to 11,929.92, 16,458.57 and 6,893.21 is: 9,509.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,929.92 : 16,458.57 = 6,893.21 : x
  2. Step 2: Convert to fraction form
    11,929.92/16,458.57 = 6,893.21/x
  3. Step 3: Cross multiply
    11,929.92x = 16,458.57 × 6,893.21
  4. Step 4: Simplify right side
    11,929.92x = 113,452,332.89
  5. Step 5: Solve for x
    x = 113,452,332.89/11,929.92
  6. Step 6: Final answer
    x = 9,509.90

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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.