Home / 8,538.21-11,784.61-5,548.85

Finding the Fourth Proportional to 8,538.21, 11,784.61 and 5,548.85

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Solution

The fourth proportional to 8,538.21, 11,784.61 and 5,548.85 is: 7,658.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,538.21 : 11,784.61 = 5,548.85 : x
  2. Step 2: Convert to fraction form
    8,538.21/11,784.61 = 5,548.85/x
  3. Step 3: Cross multiply
    8,538.21x = 11,784.61 × 5,548.85
  4. Step 4: Simplify right side
    8,538.21x = 65,391,033.20
  5. Step 5: Solve for x
    x = 65,391,033.20/8,538.21
  6. Step 6: Final answer
    x = 7,658.63

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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.