Home / 9,115.25-12,579.05-4,923.50

Finding the Fourth Proportional to 9,115.25, 12,579.05 and 4,923.50

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Solution

The fourth proportional to 9,115.25, 12,579.05 and 4,923.50 is: 6,794.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,115.25 : 12,579.05 = 4,923.50 : x
  2. Step 2: Convert to fraction form
    9,115.25/12,579.05 = 4,923.50/x
  3. Step 3: Cross multiply
    9,115.25x = 12,579.05 × 4,923.50
  4. Step 4: Simplify right side
    9,115.25x = 61,932,952.68
  5. Step 5: Solve for x
    x = 61,932,952.68/9,115.25
  6. Step 6: Final answer
    x = 6,794.43

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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.