Home / 12,125.97-16,731.63-6,819.93

Finding the Fourth Proportional to 12,125.97, 16,731.63 and 6,819.93

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Solution

The fourth proportional to 12,125.97, 16,731.63 and 6,819.93 is: 9,410.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,125.97 : 16,731.63 = 6,819.93 : x
  2. Step 2: Convert to fraction form
    12,125.97/16,731.63 = 6,819.93/x
  3. Step 3: Cross multiply
    12,125.97x = 16,731.63 × 6,819.93
  4. Step 4: Simplify right side
    12,125.97x = 114,108,545.39
  5. Step 5: Solve for x
    x = 114,108,545.39/12,125.97
  6. Step 6: Final answer
    x = 9,410.26

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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.