Home / 7,929.68-11,894.72-2,664.77

Finding the Fourth Proportional to 7,929.68, 11,894.72 and 2,664.77

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Solution

The fourth proportional to 7,929.68, 11,894.72 and 2,664.77 is: 3,997.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.68 : 11,894.72 = 2,664.77 : x
  2. Step 2: Convert to fraction form
    7,929.68/11,894.72 = 2,664.77/x
  3. Step 3: Cross multiply
    7,929.68x = 11,894.72 × 2,664.77
  4. Step 4: Simplify right side
    7,929.68x = 31,696,686.35
  5. Step 5: Solve for x
    x = 31,696,686.35/7,929.68
  6. Step 6: Final answer
    x = 3,997.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.