Home / 7,392.89-11,129.25-6,738.95

Finding the Fourth Proportional to 7,392.89, 11,129.25 and 6,738.95

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Solution

The fourth proportional to 7,392.89, 11,129.25 and 6,738.95 is: 10,144.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,392.89 : 11,129.25 = 6,738.95 : x
  2. Step 2: Convert to fraction form
    7,392.89/11,129.25 = 6,738.95/x
  3. Step 3: Cross multiply
    7,392.89x = 11,129.25 × 6,738.95
  4. Step 4: Simplify right side
    7,392.89x = 74,999,403.64
  5. Step 5: Solve for x
    x = 74,999,403.64/7,392.89
  6. Step 6: Final answer
    x = 10,144.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.