Home / 7,935.21-11,906.06-4,378.77

Finding the Fourth Proportional to 7,935.21, 11,906.06 and 4,378.77

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Solution

The fourth proportional to 7,935.21, 11,906.06 and 4,378.77 is: 6,569.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,935.21 : 11,906.06 = 4,378.77 : x
  2. Step 2: Convert to fraction form
    7,935.21/11,906.06 = 4,378.77/x
  3. Step 3: Cross multiply
    7,935.21x = 11,906.06 × 4,378.77
  4. Step 4: Simplify right side
    7,935.21x = 52,133,876.45
  5. Step 5: Solve for x
    x = 52,133,876.45/7,935.21
  6. Step 6: Final answer
    x = 6,569.94

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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.