Home / 9,197.78-12,692.54-5,218.81

Finding the Fourth Proportional to 9,197.78, 12,692.54 and 5,218.81

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Solution

The fourth proportional to 9,197.78, 12,692.54 and 5,218.81 is: 7,201.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,197.78 : 12,692.54 = 5,218.81 : x
  2. Step 2: Convert to fraction form
    9,197.78/12,692.54 = 5,218.81/x
  3. Step 3: Cross multiply
    9,197.78x = 12,692.54 × 5,218.81
  4. Step 4: Simplify right side
    9,197.78x = 66,239,935.99
  5. Step 5: Solve for x
    x = 66,239,935.99/9,197.78
  6. Step 6: Final answer
    x = 7,201.73

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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.