Home / 8,992.08-12,407.88-5,455.44

Finding the Fourth Proportional to 8,992.08, 12,407.88 and 5,455.44

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Solution

The fourth proportional to 8,992.08, 12,407.88 and 5,455.44 is: 7,527.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,992.08 : 12,407.88 = 5,455.44 : x
  2. Step 2: Convert to fraction form
    8,992.08/12,407.88 = 5,455.44/x
  3. Step 3: Cross multiply
    8,992.08x = 12,407.88 × 5,455.44
  4. Step 4: Simplify right side
    8,992.08x = 67,690,444.87
  5. Step 5: Solve for x
    x = 67,690,444.87/8,992.08
  6. Step 6: Final answer
    x = 7,527.78

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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.