Home / 9,290.73-12,822.10-5,311.08

Finding the Fourth Proportional to 9,290.73, 12,822.10 and 5,311.08

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Solution

The fourth proportional to 9,290.73, 12,822.10 and 5,311.08 is: 7,329.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,290.73 : 12,822.10 = 5,311.08 : x
  2. Step 2: Convert to fraction form
    9,290.73/12,822.10 = 5,311.08/x
  3. Step 3: Cross multiply
    9,290.73x = 12,822.10 × 5,311.08
  4. Step 4: Simplify right side
    9,290.73x = 68,099,198.87
  5. Step 5: Solve for x
    x = 68,099,198.87/9,290.73
  6. Step 6: Final answer
    x = 7,329.80

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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.