Home / 9,115.94-13,678.24-4,955.78

Finding the Fourth Proportional to 9,115.94, 13,678.24 and 4,955.78

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Solution

The fourth proportional to 9,115.94, 13,678.24 and 4,955.78 is: 7,436.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,115.94 : 13,678.24 = 4,955.78 : x
  2. Step 2: Convert to fraction form
    9,115.94/13,678.24 = 4,955.78/x
  3. Step 3: Cross multiply
    9,115.94x = 13,678.24 × 4,955.78
  4. Step 4: Simplify right side
    9,115.94x = 67,786,348.23
  5. Step 5: Solve for x
    x = 67,786,348.23/9,115.94
  6. Step 6: Final answer
    x = 7,436.02

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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.