Home / 8,936.08-13,405.20-3,091.12

Finding the Fourth Proportional to 8,936.08, 13,405.20 and 3,091.12

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Solution

The fourth proportional to 8,936.08, 13,405.20 and 3,091.12 is: 4,637.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,936.08 : 13,405.20 = 3,091.12 : x
  2. Step 2: Convert to fraction form
    8,936.08/13,405.20 = 3,091.12/x
  3. Step 3: Cross multiply
    8,936.08x = 13,405.20 × 3,091.12
  4. Step 4: Simplify right side
    8,936.08x = 41,437,081.82
  5. Step 5: Solve for x
    x = 41,437,081.82/8,936.08
  6. Step 6: Final answer
    x = 4,637.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.