Home / 8,855.12-12,228.36-5,548.88

Finding the Fourth Proportional to 8,855.12, 12,228.36 and 5,548.88

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Solution

The fourth proportional to 8,855.12, 12,228.36 and 5,548.88 is: 7,662.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,855.12 : 12,228.36 = 5,548.88 : x
  2. Step 2: Convert to fraction form
    8,855.12/12,228.36 = 5,548.88/x
  3. Step 3: Cross multiply
    8,855.12x = 12,228.36 × 5,548.88
  4. Step 4: Simplify right side
    8,855.12x = 67,853,702.24
  5. Step 5: Solve for x
    x = 67,853,702.24/8,855.12
  6. Step 6: Final answer
    x = 7,662.65

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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.